Posted by NCERT Geography class 6 chapter 1 PDF
NCERT Geography class 6 Chapter 1 Solutions
Questions in Chapter 1: The Earth in the Solar System
Q.1 What do animals and plants require in order to grow and survive?
Ans: Water and air, are very essential for the growth and survival of animals and plants. The air has life-supporting gases like oxygen.
Exercises
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?
(a) How does a planet differ from a star?
| Planet | Star |
| A planet does not have its own light and heat. It derives its light from a star. | A star possesses its own heat and light. |
| A planet is usually smaller than stars. | Stars are very huge objects compared to a planet in general. |
(b) What is meant by the ‘Solar System’?
The sun, eight planets, satellites and some other celestial bodies known as asteroids and meteoroids form the solar system. We often call it a solar family, with the sun as its Head.
(c) Name all the planets according to their distance from the sun.
There are eight planets in our solar system. In order of their distance from the sun, they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
(d) Why is the Earth called a unique planet?
Conditions favorable to support life such as water and air, are available only on Earth. The air has life-supporting gases like oxygen. Because of these reasons, the Earth is a unique planet in the solar system.
(e) Why do we see only one side of the moon always?
The moon moves around the earth in about 27 days. It takes exactly the same time to complete one spin. As a result, only one side of the moon is visible to us on the earth.
(f) What is the Universe?
The universe is everything around us, including planets, stars, galaxies, and space. There is only one Universe and everything that exists in this Universe itself. It is difficult to imagine how big the universe is.
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.
Fill in the blanks.
(a) A group of stars forming various patterns is called a constellation
(b) A huge system of stars is called galaxy.
(c) The moon is the closest celestial body to our earth.
(d) The earth is the third nearest planet to the sun.
(e) Planets do not have their own heat, and light.