2022 EXAMINATION

MOST LIKELY

ICSE QUESTION

BANK

GEOGRAPHY CLASS IX

OBJECTIVE + SUBJECTIVE

KEY FEATURES Chapterwise & Categorywise MCQs with Detailed Explanations VSA, SA, LA Included Questions Based on New Pattern Solutions Provided by Panel of Experts Categorized to Facilitate Quick Last-Minute Revision

MOST LIKELY

ICSE QUESTION

BANK

GEOGRAPHY CLASS IX

BY PANEL OF AUTHORS

COPYRIGHT RESERVED BY THE PUBLISHERS All rights reserved. No part of this publication may be reproduced in any form without the prior permission of the Oswal Publishers.

DISCLAIMER With the ambition of providing standard academic resources, we have exercised extreme care in publishing the content. In case of any discrepancies in the matter, we request readers to excuse the unintentional lapse and not hold us liable for the same. Suggestions are always welcome.

EDITION : 2022 ISBN : 978-93-92563-59-1 PRICE : ` 240.00 PRINTED AT :

PUBLISHED BY

OSWAL PUBLISHERS

PREFACE In accordance with the latest syllabus prescribed by the Council for the Indian Certificate of Secondary Education Examination, New Delhi. It is a matter of immense pride for us to present the ‘ICSE MOST LIKELY QUESTION BANK’



series, especially prepared for students appearing for Board examinations in the upcoming year.

This book has been created with the specific purpose of making the students’ journey of learning,

understanding and revising the concepts, effortless and simple. The topical approach with ample questions for every category is adopted to reinforce the students’ understanding of each chapter. The category-wise division also allows them to peruse their progress as well as help them to grasp the theory in an organised way.

Meticulous care has been taken in writing the book in simple, student-friendly language without

compromising with the quality of the content.

We are confident that the book will enable the candidates to develop a better understanding of the

curriculum and help them organize their learning process. This book shall definitely prove to be a fruitful tool for the students and encourage them towards scholastic excellence.

Constructive suggestions for further improvement of the book are always welcome.

—The Publisher

oswal.io create your own exam sample papers in 2 mins Prepare a chapter, take practice test & get evaluated to perform better Create unlimited tests based on the latest board paper pattern once you are done practicing the book questions

Scan the QR code and get instant access to oswal.io for free. Just register & get started!

A winning effort begins with daily practice of tests

Easy steps to follow : Step 1 - In a few clicks, you can completely customize your test

Mark the difficulty level

Select the chapters

Choose the question type

Pick the timer

Access on desktop for best experience www.oswal.io

Step 2 - Test is based on the selected question type, chapters, difficulty, time Step 3 - Click on start and type your answers in the given space Step 4 - Use insert

equation editor to quickly & accurately insert the

difficult math/physics/chem formulas Step 5 - Skip any question if not sure, proceed to next & submit Step 6 - You will get your result emailed right away

CONTENTS 1. Earth as a Planet

7 – 15

2. Geographic Grid – Latitudes and Longitudes

16 – 29

3. Rotation and Revolution

30 – 41

4. Earth’s Structure

42 – 51

5. Landforms of the Earth

52 – 65

6. Rocks

66 – 76

7. Volcanoes

77 – 83

8. Earthquakes

84 – 91

9. Weathering and Denudation

92 – 102

10. Hydrosphere

103 – 117

11. Composition and Structure of the Atmosphere

118 – 130

12. Insolation

131 – 139

13. Atmospheric Pressure and Winds

140 – 156

14. Humidity

157 – 169

15. Pollution

170 – 182

16. Natural Regions of the World

183 – 198

Earth as a Planet |

7

Chapter

1

Earth as a Planet Multiple Choice Questions

1. Who was the fifth century Indian astronomer and mathematician who believed in the round shape of the earth? (a) Nagarjuna

(c) Varahamihira

(b) Susruta

(d) Aryabhatta

Ans. (d) Aryabhatta 2. With Bedford Level experiment, why did the middle pole appear slightly higher than the other two poles? (a) The poles had the same height above water in the canal (b) The poles were fixed at intervals of 5 km (c) The curvature of the earth (d) The poles were fixed at different latitudes Ans. (c) The curvature of the earth 3. Identify the term used to identify the shape of the earth. (a) Flattening at the poles

(c) Oblate spheroid

(b) Circumnavigation

(d) Bedford Level

Ans. (c) Oblate spheroid 4. Name the self-regulating and self-sustaining structural and functional unit of the biosphere. (a) Food chain

(c) Respiration

(b) Atmosphere

(d) Ecosystem

Ans. (d) Ecosystem

5.  Why is biosphere known as the life zone of the earth?

(a) It is interaction between the atmosphere, lithosphere and hydrosphere (b) It is at a optimum distance from the earth (c) Oxygen is released back into the atmosphere by green plants (d) Life develops in this zone and life processes get transformed Ans. (d) Life develops in this zone and life processes get transformed 6. Why is earth known as the watery planet? (a) Earth looks blue from space as 70 per cent of its total area is covered by water (b) The Polar Stars give a blue appearance to the earth (c) The Geoid shape of the earth makes the earth appear blue (d) The earth has a biosphere, which is why the earth appears blue Ans. (a) Earth looks blue from space as 70 per cent of its total area is covered by water 7. What type of shadow of the earth will be cast on the moon on a lunar eclipse? (a) Straight

(b) Rectangular (c) Triangular

(d) Spherical

Ans. (d) Spherical 8. What happens to the horizon with the increase in altitude? (a) The circular horizon widens

(c) The circular horizon decreases

(b) The earth’s surface appears flat

(d) The circular horizon breaks

8 | ICSE Most Likely Question Bank - IX Ans. (a) The circular horizon widens 9. Why do sunrise and sunset occur at different times at different places? (a) Because the earth rotates from west to east and is spherical in shape (b) According to movement of sun and earth is spherical in shape (c) Depends on lunar eclipse as earth is spherical in shape (d) Depends on the movement of Pole Star and earth is spherical in shape Ans. (a) Because the earth rotates from west to east and is spherical in shape 10. Which is the warmest part of the earth? (a) Sub-tropics

(c) North Pole

(b) Equator

(d) South Pole

Ans. (b) Equator 11. Which is the coldest part of the earth? (a) Equator

(c) Poles

(b) Prime Meridian

(d) International Date Line

Ans. (c) Poles 12. What makes life possible on the earth? (a) Distance between the earth and the sun (c) Spherical shape of the earth (b) Presence of Ozone

(d) Photosynthesis by plants

Ans. (a) Distance between the earth and the sun 13. What is the average temperature of the earth? (a) 10°C

(b) 7.2°C

(c) 17°C

(d) 25°C

Ans. (c) 17°C 14. Why is Venus hotter than Mercury? (a) The temperature is extremely high (b) It is composed mainly of carbon dioxide, which produces a Greenhouse effect and raises the temperature (c) It is closer to sun (d) It is composed mainly of nitrogen and argon Ans. (b)  It is composed mainly of carbon dioxide, which produces a Greenhouse effect and raises the temperature 15. What is the percentage of nitrogen present in the atmosphere? (a) 78

(b) 21

(c) 1

(d) 70

Ans. (a) 78 16. What is the percentage of oxygen present in the atmosphere? (a) 78

(b) 70

(c) 21

(d) 1

Ans. (c) 21 17. How is the heat balance maintained on the earth? (a) The atmosphere is a mixture of gases which keep the earth warm. (b) The atmosphere receives heat from the sun by solar radiation and loses heat by earth’s radiation. (c) Ozone absorbs the harmful ultraviolet rays of the sun which keeps the earth warm. (d) Hydrogen and helium raise the temperature of the earth and keep it warm. Ans. (b) The atmosphere receives heat from the sun by solar radiation and loses heat by earth’s radiation. 18. Name the gas that is present in the earth’s atmosphere that absorbs the harmful ultraviolet rays of the sun (a) Nitrogen Ans. (c) Ozone

(b) Carbon

(c) Ozone

(d) Hydrogen

Earth as a Planet |

9

19.  What is responsible for moderating the climate and surface condition of the earth? (a) Ozone absorbs the harmful ultraviolet rays of the sun (b) Distribution of water (c) Structural and functional unit of the biosphere (d) Temperature of the earth Ans. (b) Distribution of water 20. How is nitrogen returned to the soil? (a) Through manure, excreta and earthly remains of plants and animals (b) Atmosphere is the largest reservoir of nitrogen (c) It moves through the food chain to the animals (d) Plants take nitrogen in the form of nitrates from the soil Ans. (a) Through manure, excreta and earthly remains of plants and animals 21. Name the process by which plants become the producers of food. (a) Transpiration

(c) Nitrogen cycle

(b) Photosynthesis

(d) Food chain

Ans. (b) Photosynthesis 22. Name the solid crust of the earth. (a) Hydrosphere

(c) Biosphere

(b) Ecosystem

(d) Lithosphere

Ans. (d) Lithosphere 23. What is water cycle? (a) Distribution of water in lakes and rivers and its circulation (b) Presence of 70% water on the earth’s surface (c) Circulation of water which modifies the surface temperature of the earth (d) Circulation of water between atmosphere, hydrosphere and lithosphere through evaporation, condensation and precipitation Ans. (d) Circulation of water between atmosphere, hydrosphere and lithosphere through evaporation, condensation and precipitation 24. What is the Greenhouse effect? (a) The movement of water between the atmosphere, hydrosphere and lithosphere (b) The mixture of gases trapped by the green plants for photosynthesis (c) The trapping of the ultraviolet rays of the sun by Ozone (d) The trapping of the sun’s radiation by gases present in the lower atmosphere Ans. (d) The trapping of the sun’s radiation by gases present in the lower atmosphere 25. What is the average distance of the earth from the sun? (a) 148 million km

(c) 175 million km

(b) 138 million km

(d) 148.14 million km

Ans. (d) 148.14 million km 26. Refer to the image and answer the question that follow: 90º NP 67.5ºN 45ºN

At which angle is the Pole Star seen at the North Pole? (a) 67.5°N Ans. (c) 90°N

(b) 45°N

(c) 90°N

(d) 0°

10 | ICSE Most Likely Question Bank - IX

27. Refer to the image and answer the following question :

How would one sight a ship at a sea from a distance, if the earth was flat? (a) The hull of the ship would appear first (b) The entire ship would be visible at once (c) The mast would be visible first (d) The deck and funnel would be the first to be sighted Ans. (b) The entire ship would be visible at once 28. While standing at sea shore, why do we first see the mast of an approaching ship? (a) Because of lunar eclipse (b) Satellite pictures depict such an image (c) Because of the spherical shape of the earth (d) Horizon is always circular Ans. (c) Because of the spherical shape of the earth 29. Match the following: 1. Famous Greek philosopher, Pythagoras was the first to put forward

(i)

Flattening of the earth at the poles

2. Jean Baptiste Delambre, the French Astronomer discovered

(ii)

Circumnavigation of the earth

3. Magellan’s ship Victoria did

(iii) Bedford level experiment

4. Dr Wallace of England

(iv) Earth is spherical in shape

(a) 1. (i) 2. (iii) 3. (iv) 4. (ii) (b) 1. (ii) 2. (i) 3. (iv) 4. (iii) Ans. (d) 1. (iv) 2. (i) 3. (ii) 4. (iii) 30. Match the following:

(c) 1. (iii) 2. (iv) 3. (ii) 4. (i) (d) 1. (iv) 2. (i) 3. (ii) 4. (iii)

1.

Energy cycle

(i)

Oxygen is released into the atmosphere by green plants

2.

Carbon cycle

(ii)

Reflects the interdependence of all living things on earth

3.

Nitrogen cycle

(iii)

Moves along the food chain through consumers at different level

4.

Oxygen cycle

(iv)

Plants take in nitrogen in the form of nitrates from the soil and moves through the food chain to animals (c) 1. (ii) 2. (iii) 3. (iv) 4. (i) (d) 1. (iv) 2. (i) 3. (ii) 4. (iii)

(a) 1. (i) 2. (ii) 3. (iv) 4. (iii) (b) 1. (iii) 2. (iv) 3. (i) 4. (ii) Ans. (c) 1. (ii) 2. (iii) 3. (iv) 4. (i)

Very Short Answer Type Questions 31. What is the shape of the Earth? Ans. The shape of the Earth is not a perfect sphere. It is an oblate spheroid. It means the Earth is slightly flattened at the pole with a bulge at the equator. 32. How does the earth create a magnetic field around it and how it is important to us? Ans. The outer core of the earth consists of molten iron and flow of convection current in the molten iron develops a magnetic field around the earth. The magnetic field of the earth surface helps in keeping the cosmic rays away from the earth’s atmosphere. 33. Name the early mathematician who held the view that Earth was spherical in shape. Ans. The Greek philosopher and mathematician, Pythagoras stated that the earth was a perfect sphere and the statement was supported by Aristotle with several arguments.

Earth as a Planet |

11

34. Why only one side of the moon is visible form the Earth? Ans. The time taken by moon to complete one revolution around the Earth is almost equal to the time taken for its rotation. The situation is known as synchronous rotation, or tidal locking. This the why we can see only side of the moon. 35. What do you mean by atmosphere? Ans. The gaseous envelope that covers the Earth is known as atmosphere. It contains a mixture of gas, dust and water vapour. The mixture comprises of 78% of Nitrogen, 21% of oxygen and a very little amount of carbon dioxide, argon and other gases. 36. What do you mean by hydrosphere? Ans. The part of the planet made up of water is called the hydrosphere. This includes oceans, rivers, lakes and clouds. It also includes atmospheric water vapour and the water present underground. 37. Define biosphere. Ans. The layer of the Earth that sustains life is called biosphere. It contains almost all the plants, animals, microbes, humans, insects, and everything living. From top to bottom it is a stretch of about 20 kilometres. It includes part of lithosphere, hydrosphere, atmosphere and other spheres. 38. What is the importance of the Ozone Layer? Ans. Ozone layer in the Earths atmosphere contains relatively higher concentration of ozone (O3) in the stratosphere that restricts 97-99% high-frequency ultra-violate rays to reach the Earth surface by absorbing them. They also help in retaining the heat radiated from the surface of the Earth. 39. How many terrestrial planets are there in the solar system and which among them is largest? Ans. Our Solar system has four terrestrial planets: Mercury, Venus, Earth and Mars. Earth is the largest planet among them. 40. Name the blue planet of the solar system and mention why it is called so? Ans. The Earth is called a blue planet of the solar system. 71% of the Earth’s surface is covered by liquid or frozen water which creates an impression of blue circular mass when seen from the space. This is the reason the Earth is called a blue planet. 41. Name the major layers of the Earth. Ans. The three major layers of the Earth are lithosphere, hydrosphere and atmosphere. 42. State two effects of the revolution of the Earth around the Sun. Ans. Revolution of the Earth around the Sun will result in (i) Change in seasons. (ii) Variation in the length of day and night. 43. Name the closest and the farthest planet from the Sun. Ans. Mercury is the closest and the Neptune is the farthest planet from the Sun in the Solar system. 44. What is the average distance of the Earth from the Sun? Ans. The average distance of the Sun from the Earth is 150 million kilometres. 45. Define the terms. (i) Apogee (ii) Perigee Ans. (i) Apogee is the farthest point of the Moon from the Earth, i.e., 406, 700 kilometres. (ii) Perigee is the nearest point of the Moon from the Earth i.e., 382, 500 kilometres. 46. Define water cycle. Ans. Water cycle is the continuous movement of water through various spheres of the Earth. The cycle involves the process of evaporation of surface water and transpiration from the vegetative covers followed by condensation and finally results in various forms of precipitation such as rain, snow, hail, sleets, etc. 47. What is the mean average temperature of the Earth and why is it important? Ans. The mean average temperature of the Earth is 14° C. It is the ideal temperature that supports life. 48. How many known satellites are there in the Solar system? Name the largest satellite of Saturn. Ans. There are 57 known satellites in the Solar system. Titan is the largest known satellite of Saturn. 49. What unit do we need to measure distances in the universe? Ans. For measuring the distances between celestial bodies in the universe, the unit required is the light year. It is the distance travelled by light in one year, i.e., 9.4607 × 1012 km. 50. Which planets have rings around them? Ans. Saturn, Uranus and Neptune have rings around them. 51. Why does the moon appear to be bigger than other celestial bodies even if its size is small? Ans. Even if the size of the moon is smaller than other celestial bodies in the universe, it appears to be bigger than them due to the nearness of the moon from the Earth. 52. Which is the hottest and coldest planet of the Solar System?

12 | ICSE Most Likely Question Bank - IX Ans. Venus is the hottest and the Neptune is the coldest planet of the Solar System. 53. Which planets are known as the Twin planets in the Solar system and why? Ans. The Venus and the Earth are called Twin Planets in the solar system because both planets have almost same size, mass and composition. Also, they are the neighbouring planets. 54. What is the orbital period of the moon and what is its average speed? Ans. The orbital period of the moon is 27 days 7 hours 43.7 minutes and the average orbital speed is 1.022 km/s. 55. Define antipodal balance between land and water. Ans. The antipodal balance between land and ocean implies the arrangement of continents and ocean on the earth in such a way that the land on one side of the globe is balanced by the water on the other side. 56. What is the position of Earth with respect to sun? Ans. The Earth is the third planet from the Sun and orbits at an average distance of 93 million miles. 57. What is Geoid?* Ans. The word Geoid has made with the combination of two words ‘Geo’ means Earth and ‘id’ means like. The word Geoid means something like Earth. 58. What conditions favour life on Earth?* Ans. Life on Earth is favoured by the following points: (i) Moderate climate. (ii) Availability of Water. (iii) Availability of land to practice agriculture and build houses.

Short Answer Type Questions 59. Provide three pieces of evidence which prove the Earth is spherical in the shape. Ans. The three pieces of evidence that prove the Earth is flat are as follows: (i) Variation in the sunrise and sunset: If the Earth would have been flat then all the places of the world would have experience day and night at the same time. The variation is the result of the earth’s spherical shape. (ii) The behaviour of the ship approaching the harbour: A ship approaching the harbour is quite good evidence of the fact that the earth is not flat but a sphere. Only the mast of an approaching ship is visible from the harbour first and slowly the whole hull will come into the sight of the viewer at the harbour. (iii) Shadow of Earth during lunar eclipse: The shape of curved shadow of the earth on the moon during lunar eclipse proves that the shape of Earth is spherical. 60. How the position of the pole star gives indication that the earth was spherical in shape. Ans. The Pole star appears vertically overhead at the North pole. If the earth was flat, the pole star would be overhead at all places on the earth.

This a not the case. The angle of elevation of the pole star is about 40º at London and 0º at Singapore. this a only possible if earth is spherical is shape. * Previous years Board Questions

Earth as a Planet |

13

61. State how the atmosphere of the Earth is different from those of the other planet. Ans. The atmospheric blanket of Earth contains 78 percent of nitrogen and 21% of oxygen along with a minimal percentage of water and carbon dioxide. The mixture is quite different to that of the atmosphere of other planet in the solar system. Jupiter and Saturn are dominated by hydrogen and helium whereas the Venus and the Mars contain 96 percent of carbon dioxide and only 3% nitrogen. The atmosphere of mercury contains a large percentage of hydrogen, helium and oxygen and a small percentage of potassium, sodium, calcium and magnesium. 62. State three importance of atmosphere. Ans. The atmosphere is essential for us because: (i) It is indispensable for the sustenance of living beings, as it contains oxygen and other necessary gases. (ii) It plays a vital role in the water cycle, as most of the process is being carried out in the lower atmosphere. (iii) It prevents excess heat and harmful radiation from reaching the surface of the earth. 63. Name three factors which have made earth a habitable? Ans. The factors that made the earth habitable are: (i) The distance from the Sun is just optimum and thus it helps in maintaining the average surface temperature of 14ºC. (ii) The gaseous envelop known as the atmosphere that contains the important gases such as oxygen which facilitates life. It also protects the surface from the heat and harmful radiations. (iii) It provides necessary nutrients for the growth and sustenance of life. 64. Write three importance of lithosphere. Ans. The lithosphere is important to us because: (i) It is the hard crust where all the activities of animal and plant kingdom take place. (ii) It contains various minerals and nutrients which are essential for the sustenance of life. (iii) It contains huge water bodies which satisfy our demand for water and energy supply. 65. Mention three important features of the Earth that supports life. Ans. The features that support life on Earth are as follows: (i) Earth’s Atmosphere: The Earth is surrounded by an atmosphere which contains valuable gases such as nitrogen, oxygen and traces of other gases essential for living. The atmosphere helps the Earth to maintain a mean average temperature of 14°C that supports life. (ii) The distance from the sun: The distance of the Earth from the Sun is neither too far or too near. It is at such a distance that it receives the right amount of heat which is conducive for life. (iii) Presence of ozone in the atmosphere: The stratosphere around the earth contains the ozone which absorbs the high-frequency ultra-violate rays that are harmful to us. It also retains the heat radiated from the surface of Earth. 66. Write a brief note about the Solar systems. Ans. (i) The solar system consists of 8 planets, revolving around the Sun. It also consists of satellites which revolve around planets, asteroids, comets, gases and dust. (ii) Based on the distance from the Sun the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. (iii) The planets of the solar systems are divided into two groups: inner and outer planets. The group of planets close to the Sun are known as inner planets such as Mercury, Venus, Mars and Earth. The group of planets which are far away from the Sun are known as outer planets such as Jupiter, Saturn, Uranus and Neptune. The inner group of planets are made of rocks whereas the outer planets are made of large balls of gases. 67. Why does the earth have optimum temperature condition? Ans. The Earth is the only planet is the solar system, which has an optimum temperature that sustains life on it. The significant reason are as follows:

14 | ICSE Most Likely Question Bank - IX (i)

The planet is situated neither too close nor too far from the Sun. The distance is just too right to maintain an average temperature of 14ºC on the Earth surface. The Zone of the optimum range is called the Goldilocks Zone.

(ii) The second most important reason is the atmospheric blanket that covers the Earth. The atmosphere protects us from the Sun’s excessive heat and harmful radiation. It also helps in trapping the heat that radiates back from the Earth and keeps it warm. 68. What do you understand antipodal balance between land and water? Ans. (i) There is an antipodal balance between land and water on directly opposite side of the Earth. Land and one side of the globe is balanced by water on the other side of the Earth. For instance North Pole Arctic Ocean is opposite to the continent of Antarctica. (ii) The Northern Hemisphere is girdled by the large land masses of North America and Eurasia. (iii) In the South Hemisphere are the continents of South America, Africa and Australia. (iv) The landmass of Antarctica had three Prominent protruding area one towards South America, another towards South Africa and third towards Australia.

Difference Based Questions 69. Inner planets and Outer planets. Ans.

Inner planets

Outer planets

(i)

The planets closer to the Sun in the solar (i) system are called inner planets.

The planets farther from the Sun in the solar systems are called outer planets.

(ii)

The inner planets are Mercury, Venus, (ii) Earth and Mars.

The outer planets are Jupiter, Saturn, Uranus and Neptune.

(iii) The inner planets are usually made up (iii) These planets are usually gas balls and are of rocks. Rocky planets are also called as called as Jovian planets. terrestrial planets. 70. Stars and Planets. Ans.

Stars

Planets

(i)

The celestial bodies which produce their (i) own light as a result of reaction at the cores are known as stars.

On the other hand, planets don’t have lights of their own. They only reflect energy.

(ii)

The stars provide a twinkling effect which (ii) is seen from the earth.

The planets do not twinkle.

(iii) The stars are very large in size.

(iii) The planets are smaller in size.

Reason Based Questions 71. The shape of the earth is not exactly that of a sphere, give reason. Ans. The Earth is not a perfect sphere; rather it is an oblate spheroid, which means it is flattened at the top and bulged at the equator. This type of shape is the result of the uneven distribution of mass around the globe. The greater the concentration the higher the gravitational pool of that particular region, thereby creating the bulge around the globe. 72. The earth is a habitable planet. Ans. The earth is only planet in the solar system which sustains life. The factors that favour life on earth system are ideal temperature condition due to optimum distance from the Sun, availability of atmospheric blanket, and abundance of water. Most importantly the atmosphere contains oxygen which favours all forms of life on the planet.

Earth as a Planet |

15

73. Why human beings weigh less on the moon than on the earth? Ans. Human beings weigh less on the moon than on the Earth because keeping the mass constant the weight can vary between the two objects. The object with lesser weight will surely have weak gravitational strength. As the size of the moon is much smaller than the Earth, the weight is also less. Thus the gravitational pull is only one-sixth of the Earth’s gravitational pull.

Diagram Related Questions 74. Draw a neat and labelled diagram of the water cycle. The Water Cycle

Ans.

Condensation

Precipitation

Transpiration Evaporation



Percolation

75. Look at the diagram given below and answer the questions that follow: (a) Identify the bigger circle marked as M. (b) Line A on Earth is not a straight line. Why and what does it signify? (c) Earth is able to maintain fixed distance from the Sun. How?

Ans. (a) The bigger circle is the imaginary path of Earth revolution. (b) Line A is Earth’s axis. It is not straight because earth is titled at a degree of 23.5º. (c) Because Earth has its own gravitational and centrifugal force which allows the Earth to remain at a fixed distance from the Sun.



OUR OTHER TITLES OF THIS SERIES FOR CLASS IX Physics  Chemistry  Mathematics Biology  Geography  History & Civics

REVIEWS FOR THIS SERIES

This book has every type of questions and consists all the chapters very well. A very good book for exam preparation.

Many questions as per the topics. Great help & numerical as per difficulty level. Good bifurcation of answers as per diagrams too.

Sandeep Kumar Gola

Fatima Rahim Shaikh

Recently I have purchased this book & let me tell you my experience with this it is very easy language understand the concept and cleared all my doubt will recommend to everyone Manish Upadhyay

Scan Me to Buy Other Amazing Oswal Titles

E-BOOKS AVAILABLE

oswalpublishers.com

FIND US AT:

t.me/oswalpublisherICSEIXandX /oswalpublishersindia

/oswalpublishers

` 240