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

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

Class 6 Geography Chapter 1 The Earth in the Solar System InText Questions and Answers

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Question 1.
Find out whether any Indian has landed on the moon?
Answer:
Rakesh Sharma is an Indian who landed on the moon.

Question 2.
What do animals and plants require in order to grow and survive?
Answer:
The animals and plants require solar energy, air, and water in order to grow and survive.

Class 6 Geography Chapter 1 The Earth in the Solar System Exercise Questions and Answers

Question 1.
Answer the following questions briefly :

(a) How does a planet differ from a star?
Answer:

Stars	Planets
Stars emit a large amount of heat and light.	They do not have heat and light of their own. They only reflect the light of the sun.
They are big heavenly bodies.	Planets are called ‘Wanderers’ because they revolve around the sun in their fixed orbits.
There are many stars that we cannot see with our naked eyes.	Planets can be seen with the help of the telescope.

(b) What is meant by the ‘Solar System’?
Answer:
The celestial bodies consisting of the Sun, its planets, satellites, asteroids, meteoroids, and dust particles from the Solar System.

(c) Name all the planets according to their distance from the sun.
Answer:
The planets according to their distance from the sun are:

1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune
9. Pluto

(d) Why is the Earth palled a unique planet?
Answer:

• Only the Earth has conditions favourable for life in the form of animals and plants.
• It has favourable/suitable temperature for life. It is neither too hot nor too cold.
• Its surface has water. No other planet of the Solar System has water, essential for the survival of plants and animals.
• Life-giving oxygen gas is found only on the Earth.
• The ozone layer in the atmosphere of the Earth protects all organisms on the Earth from harmful sun rays.

(e) Why do we see only one side of the moon always?
Answer:
The moon revolves around the earth in about 27 days. It takes exactly the same time to rotate on its axis. To complete both the movements, the moon takes the same time. This is the reason why we see only one side of the moon.

(f) What is the Universe?
Answer:
We see millions of millions of stars, planets, satellites, asteroids, meteoroids, forming galaxies. Innumerable galaxies form the universe. In other words, we can say that all these celestial bodies form the universe.

Question 2.
Tick the correct answer.
(a) The planet is known as the “Earth’s Twin” is
(1) Jupiter
(2) Saturn
(3) Venus
Answer:
(3) Venus

(b) Which is the third nearest planet to the sun
(1) Venus
(2) Earth
(3) Mercury
Answer:
(2) Earth

(c) All the planets move around the sun in a
(1) Circular path
(2) Rectangular path
(3) Elliptical path
Answer:
(3) Elliptical path

(d) The pole star indicates the direction to the
(1) South
(2) North
(3) East
Answer:
(2) North

(e) Asteroids are found between the orbits of
(1) Saturn and Jupiter
(2) Mars and Jupiter
(3) The Earth and Mars
Answer:
(2) Mars and Jupiter

Question 3.
Fill in the blanks:

(a) A group of ______ forming various patterns is called a ______.
Answer:

• Stars
• Constellation

(b) A huge system of stars is called ______
Answer:
Galaxy

(c) ______ is the closest celestial body to our earth.
Answer:
Moon

(d) ______ is the third nearest planet to the sun.
Answer:
Earth

(e) Planets do not have their own _______ and ________.
Answer:

• Heat
• Light