Keep It Simple Official Class 6 Geography Chapter 1

1. Keep It Simple Official Class 6 Geography Chapter 13
2. Keep It Simple Official Class 6 Geography Chapter 1 Notes
3. Keep It Simple Official Class 6 Geography Chapter 11
4. Keep It Simple Official Class 6 Geography Chapter 14

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• Time Management IF YOU WORK TAKE NO MORE THAN 40 hours/wk 6 credit hours 30 hours/wk 9 credit hours 20 hours/wk 12 credit hours 5-15 hours/wk 14-16 credit hours 1 credit hour equals one hour in class or lab a week For every 1 credit hour of class, plan on studying 2-3 hours for that class 12 credit hours is considered 'full-time' enrollment.

Social/Cultural Geography covers the study of society and the spatial dynamics of society and the cultural aspects caused by society. Population Geography encompasses the population growth, density, distribution, migration, sex ratio and occupational structure, and so on. Settlement Geography deals with the features of urban and rural settlements. The NCERT Solutions for class 11 Geography Chapter 6 Geomorphic Processes is present with step by step explanations. The class 11 chapter wise solutions for the subject of Geography are available here. The solutions provided are prepared by experts and are incredibly accurate for students to learn and prepare from for their main exams.

Practical Work in Geography Class 12 Solutions Chapter 1 Data – Its Source and Compilation

Class 12 Practical Work in Geography Chapter 1 NCERT Textbook Questions Solved

1. Choose the right answer from the four alternatives given below:

Question 1(i).
A number or character which represents measurement is called
(a) Digit
(b) Data
(c) Number
(d) Character
Answer:
(b) Data

Question 1(ii).
A single datum is a single measurement from the
(a) Table
(b) Frequency
(c) Real world
(d) Information
Answer:
(c) Real world

Question 1(iii).
In a tally mark grouping by four and crossing fifth is called
(a) Four and Cross Method
(b) Tally Marking Method
(c) Frequency plotting Method
(d) Inclusive Method
Answer:
Both
(a) Four and Cross Method
(b) Tally Marking Method

Question 1(iv).
An Ogive is a method in which
(a) Simple frequency is measured
(b) Cumulative frequency is measured
(c) Simple frequency is plotted
(d) Cumulative frequency is plotted
Answer:
(d) Cumulative frequency is plotted

Question 1(v).
If both ends of a group are taken in frequency grouping, it is called
(a) Exclusive method
(b) Inclusive method
(c) Marking method
(d) Statistical method
Answer:
(b) Inclusive method

2. Answer the following questions in about 30 words:

Question 2(i).
Differentiate between data and information.
Answer:
The data is defined as numbers that represent measurements from the real world. Datum is a single measurement. Thus, numerical information is called data. Information is defined as either a meaningful answer to a query or a meaningful stimulus that can cascade into further queries.

Question 2(ii).
What do you mean by data processing?
Answer:
Data processing is the process of organising, presenting, analysing and interpreting data. Once the data are collected, these data need to be organised, presented and analysed for proper interpretation.

Question 2(iii).
What is the advantage of footnote in a table?
Answer:
Footnote gives the necessary information about the statistics. For example, if we use abbreviation M and F for male and female respectively, it can be clarified through footnote. By giving a star mark, we also give source of data in footnote.

Question 2(iv).
What do you mean by primary sources of data?
Answer:
Primary data refers to the data which is originally collected by the investigator for the purpose of present enquiry directly from individuals or group of individuals using direct personal investigation, indirect personal investigation, mailing interview method, telephonic interview method, etc. It is also called first hand or original data. It is much more reliable as compared to secondary data.

Question 2(v).
Enumerate five sources of secondary data.
Answer:

1. Published Printed Sources
   • Books
   • Journals/periodicals
   • Magazines/newspapers
2. Published Electronic Sources
   • E-journals
   • General websites
   • Weblogs
3. Unpublished personal records
4. Government records
5. Central Statistical Office (CSO) and National Sample Survey Office (NSSO)

3. Answer the following questions in about 125 words:

Question 3(i).
Discuss the national and international agencies where from secondary data may be collected.
Answer:
National and international agencies from where secondary data may be collected are given below:
1. Government Publications: The publications of the various ministries and the departments of the Government of India, State Governments and the District Bulletins are one of the most important sources of secondary information. These include the Census of India published by the Office of the Registrar General of India, reports of the National Sample Survey, Weather Reports of Indian Meteorological Department, and Statistical Abstracts published by state governments, and the periodical reports published by different Commissions.

2. Semi/Question uasi-government Publications: The publications and reports of Urban Development Authorities and Municipal Corporations of various cities and towns, Zila Parishads (District Councils), etc. fall under this category.

3. International Publications: The international publications comprise yearbooks, reports and monographs published by different agencies of the United Nations such as United Nations Educational, Scientific and Cultural Organisation (UNESCO), United Nations Development Programme (UNDP),World Health Organisation (WHO), Food and Agricultural Organisation (FAO), etc. Some of the important publications of the United Nations that are periodically published are Demographic Year Book, Statistical Year Book and the Human Development Report.

4. Private Publications: The yearbooks, surveys, research reports and monographs published by newspapers and private organisations fall under this category.

5. Newspapers and Magazines: The daily newspapers and the weekly, fortnightly and monthly magazines serve as easily accessible source of secondary data. (fi Electronic Media: The electronic media specially internet has emerged as a major source of secondary data in recent times.

Question 2(ii).
What is the importance of an index number? Taking an example examine the process of calculating an index number and show the changes.
Answer:
Index numbers are statistical devices designed to measure the relative change in the level of variable or group of variables with respect to time, geographical location, etc. In other words, these are the numbers which express the value of a variable at any given period called ‘current period' as a percentage of the value of that variable at some standard period called 'base period'.

Index numbers are indispensable tools of economics and business analysis. Following are the main uses of index numbers. Index numbers are used as economic barometers. Index numbers help in formulating suitable economic policies and planning. They are used in studying trends and tendencies. Businessmen need to know the trends in the market to take decisions about wage rates, prices of the product, prices of raw materials, etc. Therefore, index numbers are very useful for them. They provide information regarding foreign trade. They are useful in forecasting future economic activity. The cost of living index numbers determines .whether the real wages are rising or falling or remain constant. It is used in deflating. For example, suppose rice sells at ?9/kg at BBSR in 2005 as compare to ₹ 4.50/Kg in 1985.
Therefore the index number of price of rice in 2005 compared to 1985 is calculated as
This means that there is a net increase of 100% in the price of rice in 2005 as compared to 1985. [The base year's index number is always treated as 100]
Suppose, during the same period 2005 the rice sells at Rs. 12.00/kg in Delhi. Ios toolkit 1 1 58 kg. Therefore, the index number of price at Bhubaneswar compared to price at Delhi is
This means that there is a net decrease of 25% in the price of rice in 2005 as compared to 1985.
The above index numbers are called ‘Price Index Numbers'.
To take another example the production of rice in 2012 in Orissa was 42,000 metric tons in comparison to 36,000 metric tons in 2001. So the Index Number of the quantity produced in 2012 compared to 2001 is
That means that there is a net increase of 21.61% in production of rice in 2012 as compared to 2001.

ACTIVITY

Question 1.
In a class of 35 students of Geography, following marks were obtained out of 10 marks in unit test – 1, 0, 2, 3, 4, 5, 6, 7, 2, 3, 4, 0, 2, 5, 8, 4, 5, 3, 6, 3, 2, 7, 6, 5, 4, 3, 7, 8, 9, 7, 9, 4, 5, ‘4, 3. Represent the data in the form of a group frequency distribution.
Answer:

Question 2.
Collect the last test result of Geography of your class and represent the marks in the form of a group frequency distribution
Answer:
Do yourself.

Class 12 Practical Work in Geography Chapter 1 NCERT Extra Questions

Class 12 Practical Work in Geography Chapter 1 Very Short Answer Type Questions

Question 1.
What do you mean by data?
Answer:
Numerical and quantitative measurement of geographical events, human activities and their interrelationship are called data.

Question 2.
When do we get meaningful result from collected data?
Answer:
Data collected are required to be organised and presented and then analysed. Only then we can reach at meaningful conclusions from data.

Question 3.
Explain different methods of presentation of data.
Answer:
There can be many methods of presenting the data like: tabulation of data (in absolute terms, in percentage or ratio); graphical presentation, pictoral presentation or presentation using maps.

Question 4.
Name two important sources of collecting data.
Answer:
Two important sources of collecting data are primary data and secondary data.

Question 5.
What are absolute data?
Answer:
When data are presented in their original form as integers, they are called absolute data or raw data. For example, the total population of a country or a state, the total production of a crop or a manufacturing industry, etc.

Question 6.
Differentiate between primary and secondary data.
Answer:
Primary Data: The data which are collected for the first time by an individual or the group of individuals, institution/organisations are called Primary sources of the data. Secondary Data: Data which are collected from any published or unpublished sources are called Secondary sources.

Question 7.
Why is it necessary to convert data into percentage or ratio?
Answer:
Sometimes data are tabulated in a ratio or percentage form that are computed from a common parameter, such as literacy rate or growth rate of population, percentage of agricultural products or industrial products, etc. It is important because absolute data cannot be compared.

Question 8.
What do you mean by index numbers?
Answer:
Index numbers are statistical devices designed to measure the relative change in the level of variable or group of variables with respect to time, geographical location, etc. In other words, these are the numbers which express the value of a variable at any given period called ‘current period' as a percentage of the value of that variable at some standard period called ‘base period'.

Question 9.
Why is it necessary to analyse the collected data?
Answer:
When we collect data, it is in absolute terms. We need to organise and present these data. After organisation and presentation, these data are converted into percentage and ratio. Thereafter, we need to calculate mean, median, mode, etc. to reach at the conclusion. Therefore, it is necessary to analyse collected data.

Question 10.
Explain the methods adopted to determine class size of data.
Answer:
The grouping of the raw data requires determining of the number of classes in which the raw data are to be grouped and what will be the class intervals. The selection of the class interval and the number of classes, however, depends upon the range of raw data. For example, if raw data is more expanded we can take class interval as 0-10, 10-20, etc. if it is less expanded, class interval can be 0-2, 2-4, etc.

Question 11.
What do you mean by frequency distribution?
Answer: A frequency distribution divides observations in the data set into conveniently established numerically ordered classes (groups or categories). The number of observations in each class is referred to as frequency denoted as f.

Question 12.
Give the difference between normal frequency and cumulative frequency.
Answer:
Simple Frequencies: It is expressed by ‘f and represent the number of individuals falling in each group. On the other hand, Cumulative Frequencies are expressed by ‘Cf and can be obtained by adding successive simple frequencies in each group with the previous sum.

Question 13.
What do you mean by frequency distribution polygon?
Answer:
A graph of frequency distribution is known as the frequency polygon. It helps in comparing the two or more than two frequency distributions. The two frequencies ‘ are shown using a bar diagram and a line graph respectively.

Question 14.
What do you mean by Ogive?
Answer:
When the frequencies are added they are called cumulative frequencies and are listed in a table called cumulative frequency table. The curve obtained by plotting cumulative frequencies is called an Ogive. It is constructed either by the less than method or the more than method.

Class 12 Practical Work in Geography Chapter 1 Short Answer Type Questions

Question 1.
Explain the exclusive method by less than and more than cumulative frequencies.
Answer:

Question 2.
Exhibit the above data using a frequency polygon.
Answer:

Question 3.
Explain the difference between inclusive method and exclusive method.
Answer:
An inclusive method is one in which there is generally a difference between the upper limit of one class interval and the lower limit of the other class interval. For example, 0-9, 10-19, 20-29 are inclusive classes because it includes 9, 19, 29, etc. On the ‘ other hand, an exclusive method is one in which there is generally no difference between the upper limit of one class interval and the lower limit of the other class interval. For example, 0-10, 10-20, 20-30 are examples of exclusive classes because 10, 20, 30 are not included in the classes where these are upper limits.

Class 12 Practical Work in Geography Chapter 1 Long Answer Type Questions

Question 1.
Explain the procedure of tabulating and making frequency distribution with the help of an example.
Marks obtained by students in Geography are given below.
Make a frequency distribution.
Answer:
Step-1: Find the difference between the largest and the smallest items. Highest value is 97 and lowest value is 7. Therefore, the difference is 90 (97-7).
Step-2: Keeping in mind the range the class interval will be 10 and classes will be 0-10, 10-20, 20-30, etc.
Step-3: It is to be noted that upper limit is excluded and lower limit is included in the class, i.e. the value 30 will be included in 30-40 not in 20-30.
Conclusions derived from analysis:

• The highest number of students lie in the class interval 50-60, i.e. 10.
• Only 3 students have got marks between 0-10.
• Only 14 students have got marks less than 40%.
• 2 students have got marks more than 90.
• 48 students have got marks less than 90.

Class 12 Practical Work in Geography Chapter 1 Viva Questions

Question 1.
Give two methods of collecting primary data.
Answer:
Direct oral investigation and interview method.

Question 2.
Give two examples where geographers use secondary data.
Answer:
Geographers use secondary data to find various information. Geographical Survey of India collects data and others use it for different purposes.

Question 3.
Is Internet primary or secondary method of data collection?
Answer:
It is a secondary method of data collection. Pdf encrypt 3 0 0 download free.

Question 4.
What is cumulative frequency?
Answer:
It is summation of frequencies for particular class intervals. It can be obtained by adding successive simple frequencies in each group with the previous sum.

Question 5.
Give two examples of quantitative data.
Answer:
Temperature and rainfall.

Question 6.
Give two examples of qualitative data.
Answer:
Diversity of flora and fauna, forest quality. Free audio editing software for macbook pro.

Question 7.
What is stub?
Answer:
Heading of a row in a table is called stub.

Question 8.
What is caption?
Answer:
Heading of a column in a table is called caption.

Data – Its Source and Compilation Notes

• Numerical and quantitative measurement of geographical events, human activities and their interrelationship are called data. In other words, quantitative information is called datum. Therefore, data are also called quantitative information. Numbers that define measurement from real world.
• It may be easily realized that there are large volume of data available around the world today. However, at times, it becomes difficult to derive logical conclusions from these data if they are in a raw form. Hence, it is important to ensure that the measured information is algorithmically derived and/or logically deduced and/or statistically calculated from multiple data.
• The use of statistical methods in the analysis, presentation and in drawing conclusions plays a significant role in almost all disciplines, including geography, which use the data.
• It may, therefore, be inferred that the concentration of a phenomena, e.g. population, forest or network of transportation or communication not only vary over space and time but may also be conveniently explained using the data.
• Analytical tools and techniques have become more important these days to make the study more logical and derive precise conclusion. Precise quantitative techniques are used right from the beginning of collecting and compiling data to its tabulation, organisation, ordering and analysis till the derivation of conclusions.
• The data are collected through the following ways. These are:
  (i) Primary Sources (ii) Secondary Sources.
• The data which are collected for the first time by an individual or the group of individuals, institution/organisations are called primary sources of the data.
• Data collected from any published or unpublished sources are called secondary sources.
• When data are presented in their original form as integers, they are called absolute data or raw data. For example, the total population of a country or a state, the total production of a crop or a manufacturing industry, etc.
• Percentage/Ratio: Sometimes data are tabulated in a ratio or percentage form that are computed from a common parameter, such as literacy rate or growth rate of population, percentage of agricultural products or industrial products, etc.
• An index number is a statistical measure designed to show changes in variable or a group of related variables with respect to time, geographic location or other characteristics. It is to be noted that index numbers not only measure changes over a period of time but also compare economic conditions of different locations, industries, cities or countries. Index number is widely used in economics and business to see changes in price and quantity. There are various methods for the calculation of index number.
• The grouping of the raw data requires determining of the number of classes in which the raw data are to be grouped and what will be the class intervals. The selection of the class interval and the number of classes, however, depends upon the range of raw data.

Data – Its Source and Compilation Important Terms

• Data: Numerical and quantitative measurement of geographical events, human activities and their interrelationship are called data.
• Information: Information is defined as either-a meaningful answer to a query or a meaningful stimulus that can cascade into further queries.
• Primary Data: The data which are collected for the first time by an individual or the group of individuals, institution/organisations are called Primary sources of the data.
• Secondary Data: Data which are collected from any published or unpublished sources are called Secondary sources.
• Inclusive Method: Under this method, upper limit of a class is not the lower limit of next class. It includes lower limit as well as upper limit in the class interval.
• Exclusive Method: Under this method, upper limit of a class is the lower limit of next class. It does not include upper limit in the class interval.
• Simple Frequencies: It is expressed by ‘f and represent the number of individuals falling in each group.
• Cumulative Frequencies: It is expressed by ‘Cf and can be obtained by adding successive simple frequencies in each group with the previous sum.
• Frequency Polygon: A graph of frequency distribution is known as the frequency polygon. It helps in comparing the two or more than two frequency distributions. The two frequencies are shown using a bar diagram and a line graph respectively.
• Ogive: When the frequencies are added they are called cumulative frequencies and ‘ are listed in a table called cumulative frequency table. The curve obtained by plotting cumulative frequencies is called an Ogive. It is constructed either by the less than method or the more than method.

Class 12 Geography NCERT Solutions

NCERT Solutions for Class 6 Social Science Geography Chapter 1 The Earth in the Solar System

1. Answer the following questions briefly.
(a) How does a planet differ from a star?
(b) What is meant by the ‘Solar System'?
(c) Name all the planets according to their distance from the sun.
(d) Why is the Earth called a unique planet?
(e) Why do we see only one side of the moon always?
(f) What is the Universe?

Answer: (a) Differences between a planet and a star:
(b) The term Solar System refers to the 'family' of the Sun. The Sun is a star around which eight planets, among other celestial objects, revolve in orbits. This whole system of bodies is called the Solar System. The Sun is the 'head' of this system.

(c) The list of planets in the order of their distance from the Sun is as follows:

• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn
• Uranus
• Neptune

(d) The Earth is regarded as a unique planet because of the following reasons:

• It is the only planet known to support life. It has oxygen and water present in proportions that allow life to thrive.
• It also has a temperature range that supports life.
• The proportion of water present is about two-thirds of the surface of the earth when compared to land.

(e) One revolution of the moon around the earth takes about 27 days. Incidentally, the moon's rotation about its own axis also takes nearly the same time. One day of the moon is equal to 27 Earth days. So only one side of the moon can be seen from the earth.

(f) The Universe is the largest unit in which we live. It is a collection of galaxies. https://software-graphics.mystrikingly.com/blog/subsmarine-1-2-3-download-free. There is only one Universe and everything that exists in this Universe itself.

2. Tick the correct answer.

(a) The planet is known as the 'Earth's Twin' is
(i) Jupiter
(ii) Saturn
(iii) Venus.

(b) Which is the third nearest planet to the sun?
(i) Venus
(ii) Earth
(iii) Mercury.

(c) All the planets move around the sun in a
(i) Circular path
(ii) Rectangular path
(iii)Elongated path

(d) The Pole Star indicates the direction to the
(i) South
(ii) North
(iii) East.

(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter
(ii) Mars and Jupiter
(iii) The Earth and Mars.

Answers: (a)—(iii), (b)—(ii), (c)—(iii), (d)—(ii), (e)—(ii).

Question 7.
What is stub?
Answer:
Heading of a row in a table is called stub.

Question 8.
What is caption?
Answer:
Heading of a column in a table is called caption.

Data – Its Source and Compilation Notes

• Numerical and quantitative measurement of geographical events, human activities and their interrelationship are called data. In other words, quantitative information is called datum. Therefore, data are also called quantitative information. Numbers that define measurement from real world.
• It may be easily realized that there are large volume of data available around the world today. However, at times, it becomes difficult to derive logical conclusions from these data if they are in a raw form. Hence, it is important to ensure that the measured information is algorithmically derived and/or logically deduced and/or statistically calculated from multiple data.
• The use of statistical methods in the analysis, presentation and in drawing conclusions plays a significant role in almost all disciplines, including geography, which use the data.
• It may, therefore, be inferred that the concentration of a phenomena, e.g. population, forest or network of transportation or communication not only vary over space and time but may also be conveniently explained using the data.
• Analytical tools and techniques have become more important these days to make the study more logical and derive precise conclusion. Precise quantitative techniques are used right from the beginning of collecting and compiling data to its tabulation, organisation, ordering and analysis till the derivation of conclusions.
• The data are collected through the following ways. These are:
  (i) Primary Sources (ii) Secondary Sources.
• The data which are collected for the first time by an individual or the group of individuals, institution/organisations are called primary sources of the data.
• Data collected from any published or unpublished sources are called secondary sources.
• When data are presented in their original form as integers, they are called absolute data or raw data. For example, the total population of a country or a state, the total production of a crop or a manufacturing industry, etc.
• Percentage/Ratio: Sometimes data are tabulated in a ratio or percentage form that are computed from a common parameter, such as literacy rate or growth rate of population, percentage of agricultural products or industrial products, etc.
• An index number is a statistical measure designed to show changes in variable or a group of related variables with respect to time, geographic location or other characteristics. It is to be noted that index numbers not only measure changes over a period of time but also compare economic conditions of different locations, industries, cities or countries. Index number is widely used in economics and business to see changes in price and quantity. There are various methods for the calculation of index number.
• The grouping of the raw data requires determining of the number of classes in which the raw data are to be grouped and what will be the class intervals. The selection of the class interval and the number of classes, however, depends upon the range of raw data.

Data – Its Source and Compilation Important Terms

• Data: Numerical and quantitative measurement of geographical events, human activities and their interrelationship are called data.
• Information: Information is defined as either-a meaningful answer to a query or a meaningful stimulus that can cascade into further queries.
• Primary Data: The data which are collected for the first time by an individual or the group of individuals, institution/organisations are called Primary sources of the data.
• Secondary Data: Data which are collected from any published or unpublished sources are called Secondary sources.
• Inclusive Method: Under this method, upper limit of a class is not the lower limit of next class. It includes lower limit as well as upper limit in the class interval.
• Exclusive Method: Under this method, upper limit of a class is the lower limit of next class. It does not include upper limit in the class interval.
• Simple Frequencies: It is expressed by ‘f and represent the number of individuals falling in each group.
• Cumulative Frequencies: It is expressed by ‘Cf and can be obtained by adding successive simple frequencies in each group with the previous sum.
• Frequency Polygon: A graph of frequency distribution is known as the frequency polygon. It helps in comparing the two or more than two frequency distributions. The two frequencies are shown using a bar diagram and a line graph respectively.
• Ogive: When the frequencies are added they are called cumulative frequencies and ‘ are listed in a table called cumulative frequency table. The curve obtained by plotting cumulative frequencies is called an Ogive. It is constructed either by the less than method or the more than method.

Class 12 Geography NCERT Solutions

NCERT Solutions for Class 6 Social Science Geography Chapter 1 The Earth in the Solar System

1. Answer the following questions briefly.
(a) How does a planet differ from a star?
(b) What is meant by the ‘Solar System'?
(c) Name all the planets according to their distance from the sun.
(d) Why is the Earth called a unique planet?
(e) Why do we see only one side of the moon always?
(f) What is the Universe?

Answer: (a) Differences between a planet and a star:
(b) The term Solar System refers to the 'family' of the Sun. The Sun is a star around which eight planets, among other celestial objects, revolve in orbits. This whole system of bodies is called the Solar System. The Sun is the 'head' of this system.

(c) The list of planets in the order of their distance from the Sun is as follows:

• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn
• Uranus
• Neptune

(d) The Earth is regarded as a unique planet because of the following reasons:

• It is the only planet known to support life. It has oxygen and water present in proportions that allow life to thrive.
• It also has a temperature range that supports life.
• The proportion of water present is about two-thirds of the surface of the earth when compared to land.

(e) One revolution of the moon around the earth takes about 27 days. Incidentally, the moon's rotation about its own axis also takes nearly the same time. One day of the moon is equal to 27 Earth days. So only one side of the moon can be seen from the earth.

(f) The Universe is the largest unit in which we live. It is a collection of galaxies. https://software-graphics.mystrikingly.com/blog/subsmarine-1-2-3-download-free. There is only one Universe and everything that exists in this Universe itself.

2. Tick the correct answer.

(a) The planet is known as the 'Earth's Twin' is
(i) Jupiter
(ii) Saturn
(iii) Venus.

(b) Which is the third nearest planet to the sun?
(i) Venus
(ii) Earth
(iii) Mercury.

(c) All the planets move around the sun in a
(i) Circular path
(ii) Rectangular path
(iii)Elongated path

(d) The Pole Star indicates the direction to the
(i) South
(ii) North
(iii) East.

(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter
(ii) Mars and Jupiter
(iii) The Earth and Mars.

Answers: (a)—(iii), (b)—(ii), (c)—(iii), (d)—(ii), (e)—(ii).

3. Fill in the blanks.

1. A group of……. forming various patterns is called a ………….
2. A huge system of stars is called ……………
3. ………. is the closest celestial body to our earth.
4. ………. is the third nearest planet to the sun.
5. Planets do not have their own ………… and ……….

Answers: Nikon camera control pro 2 28 2.

1. stars, constellation
2. galaxy
3. The moon
4. The earth
5. heat, light.

NCERT Solutions for Class 6 Social Science Geography Chapter 1 Multiple Choice Questions

Choose the correct option to complete the statements given below:
(i) Full moon night occurs once every……….
(a) day
(b) 15 days
(c) 20 days
(d) month.

(ii) The Hindi word for the New Moon night is ……….
(a) Amavasya
(b) Krishna Paksha
(c) Poornima
(d) none of these.

(iii) The sun is …………
(a) a star
(b) a celestial body
(c) the head of the solar system
(d) all of these.

(iv) Ursa Major is a/an
(a) star
(b) constellation
(c) galaxy
(d) asteroid.

(v) Which of these was a planet till 2006 but is now a 'dwarf planet'?
(a) Neptune
(b) The Sun
(c) Pluto
(d) Solaris.

(vi) The term 'Blue Planet' indicates the presence of
(a) land
(b) water
(c) oxygen
(d) all of these.

Answers:
(i)—(d),
(ii)—(a),
(iii)—(d),
(iv)—(b),
(v)—(c),
(vi)—(b).

Keep It Simple Official Class 6 Geography Chapter 13

Fill in the Blanks.

Fill in the blanks with appropriate words to complete each sentence:

1. The Amavasya night occurs about ………. days after the Poomima night.
2. Stars are celestial bodies that are ………. and ………….
3. The planets do not possess their own ………. and …………
4. The Small Bear constellation is better known as the ………….
5. The Greek word which is the origin of the word 'planets' means ………….
6. Three planets having rings around them are …………, ………., and …………
7. ……. are elongated fixed paths in which a celestial body always remains.
8. Venus is similar to the earth in its ………. and ………….
9. The shadows on the moon's surface are due to ………., ………, and …………
10. Meteoroids heat up and bum due to …………

Answers:

1. fifteen
2. big, hot
3. heat, light
4. Saptarishi
5. wanderers,
6. Jupiter, Saturn, Uranus
7. Orbits
8. size, shape
9. mountains, plains, depressions
10. friction.

Keep It Simple Official Class 6 Geography Chapter 1 Notes

True/False:

State whether these sentences are true (T) or false (F).

1. The Sun appears bigger and brighter than the other stars because it is indeed so.
2. Saptarishi and Ursa Major are two different constellations.
3. The Pole Star is known to have a fixed position in the sky.
4. The earth is the only planet that has a natural satellite.
5. Pluto was declared a 'dwarf planet' in August 2006.
6. The earth is the third-largest planet in the solar system.
7. The geoid shape is not perfectly spherical.
8. The moon takes about the same time in rotating about its axis once as it does to complete a revolution around the earth.

Answers:

1. False
2. False
3. True
4. False
5. True
6. False
7. True
8. True.

Class 6th Geography NCERT Chapter 1 Very Short Answer Type Questions

1. Name two celestial bodies visible only in the night sky.
Answer: The moon and the stars are celestial bodies visible in the night sky.

2. Why do we not feel the heat and light of the stars, even though they are so big and hot?
Answer: We do not feel the heat and light of the stars since they are very far away.

Keep It Simple Official Class 6 Geography Chapter 11

3. From which Greek word is the word ‘planet' derived?
Answer: The word ‘planet' is derived from the Greek word ‘Planetai'.

Keep It Simple Official Class 6 Geography Chapter 14

4. What does the solar family consist of? [V. Imp.]
Answer: The solar family consists of the sun, planets, their satellites, and asteroids and meteoroids.

5. What is the shape of the orbits in which planets revolve around the sun?
Answer: The orbits of planets are elliptical (Le. elongated) in shape.

6. Which planet is called 'Earth's twin' and why?
Answer: Venus is called 'Earth's twin' because it is similar to Earth in its shape and size.

7. What is 'Geoid'?
Answer: A sphere with its ends flattened at poles (just like earth) is called the geoid.

8. Why is earth called 'blue planet'? [V. Imp.]
Answer: Earth appears blue from when seen from the outer space since it has over 2/3^rd water. So it is called the blue planet.

9. How much time does the moon take to revolve once around the earth?
Answer: The moon takes approximately 27 days to revolve once around the earth.

10. What is the difference between the moon and INSAT? [V. Imp.]
Answer: The moon is a natural satellite of the earth while INSAT is an artificial satellite.

11. What are asteroids?
Answer: Asteroids are the numerous tiny celestial bodies which revolve around the sun and are mainly found between the orbits of Mars and Jupiter.

12. What is a meteoroid?
Answer: Small pieces of rocks which move around the sun are called meteoroids.

The Earth In The Solar System Class 6 Chapter 1 Short Answer Type Questions

1. Name the two extreme shapes of the moon. When and at what intervals do they occur?
Answer: The moon is seen in its two extreme shapes on the Full Moon night arid the New Moon night. The Full Moon. The Full Moon means the moon in its full circular shape. The New Moon. The New Moon means the moon that can not be a seer. The New Moon occurs on the fifteenth day and the Full Moon occurs on the last day of the Hindi calendar month.

2. What is the Pole Star? How can the Saptarishi be used to locate it? [Imp.]
Answer: The Pole Star is the star that is known to retain its position in the sky always. We can locate the position of the Pole Star with the help of the constellation Saptarishi. If an imaginary line is drawn joining the 'pointer stars' of the Saptarishi and extended further, it will point to the Pole Star.
In the Fig. 1.3 shown here, 1 and 2 represent the 'pointer stars'. The Pole Star and the pointer stars lie on the same line.

3. Write a short note on the two planets nearest to the sun.
Answer: Mercury. It is the nearest planet to the sun. It takes just about 88 earth days to revolve once around the sun. It is extremely hot since it is close to the sun. It is also the smallest planet. Venus. It is the second closest planet to the sun. It is similar to earth in shape and size. It is called 'Earth's twin'.

4. How does earth support life? [V. Imp.]
Answer: The earth has conditions that support life. It is neither too hot nor too cold. It has both water and air, which are both indispensable for life. Presence of oxygen in the air in an appropriate proportion supports life. These factors make the earth a unique planet.

Class 6 Geography Chapter 1 Long Answer Type Questions

1. Write short notes on the following:
(a) The sun
(b) The moon
(c) Galaxy. [V. Imp.]
Answer:
(a) The sun is considered the 'head' of the solar system. It is a star, although it is smaller and less bright than most other stars. It is a huge celestial body made up of extremely hot gases. It provides heat and light for the whole of the solar system. Life on earth depends on many factors, and the sunlight is one of them. The sun is about 150 million kilometers away from the earth.

(b) The moon is the only natural satellite of our planet earth. Its diameter is just about a quarter of the earth's diameter. It is comparatively closer (3,84,400 kilometers away) to earth than all other celestial bodies. It does not support life. It revolves around the earth and rotates about its own axis in about the same time, due to which only one side of the moon is visible to us.

(c) Galaxy is a term that refers to billions of stars, clouds of dust and gases, and other celestial bodies considered as a single unit. The only bigger unit in the universe, galaxies make up the universe. The galaxy we live in is called the Milky Way.

2. Draw a diagram showing the eight planets of the solar system in their orbits around the' sun. Also prepare a table mentioning the length of their days and years.
Answer: