Hello everyone welcome in SONU LIVE ,in this article I will provide you all important questions related CLASS 6TH GEOGRAPHY NCERT chapter 1 and also important questions for UPSC.
Class 6th :- The Earth in the Solar System
Exercises
1. Answer the following questions briefly.
Q.a. How does a planet differ from a star?
Ans-
- Composition: Planets primarily compose of rock, metal, or gas, while stars consist mostly of hydrogen and helium.
- Energy Source: Planets do not generate their own light or heat; they reflect light from stars. Stars, on the other hand, produce energy through nuclear fusion in their cores.
- Size: Planets size smaller compared to stars. Stars can be significantly larger, with diameters ranging from a few hundred to millions of kilometers.
- Orbit: Planets orbit stars due to gravitational forces. Stars may have companion stars but don’t orbit other celestial bodies like planets.
- Life Support: Planets may host life, whereas stars do not provide a suitable environment for life as we know it.
Q.b. What is meant by the ‘Solar System’?
Ans- The Solar System refers to the sun and all celestial bodies, including planets, moons, asteroids, and comets, that are bound by gravity and orbit the sun. It is a vast cosmic system where the sun’s gravitational force dominates, holding these objects in orbit around it.
Q.c. Name all the planets according to their distance from the sun.
Names of the planets according to their distance from the sun are:- Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Q.d. Why is the Earth called a unique planet?
Ans- The Earth is called a unique planet because it has conditions suitable for life. It has a balanced atmosphere with oxygen, water in liquid form, and a moderate climate. These factors make Earth distinct from other planets, allowing diverse forms of life to exist.
Q.e. Why do we see only one side of the moon always?
Ans- We see only one side of the moon always because the moon rotates on its axis at the same rate it orbits Earth. This synchronous rotation results in the same side facing Earth consistently. Imagine a person spinning while turning around – you always see the same face.
Q.f. What is the Universe?
Ans- We see only one side of the moon always because the moon rotates on its axis at the same rate it orbits Earth. This synchronous rotation results in the same side facing Earth consistently. Imagine a person spinning while turning around – you always see the same face.
Q.2. Tick the correct answer
a) The planet known as the “Earth’s Twin” is
(i) Jupiter
(ii) Saturn
(iii) Venus
Answer: (iii) Venus
(b) Which is the third nearest planet to the sun?
(i) Venus
(ii) Earth
(iii) Mercury
Answer: (ii) Earth
(c) All the planets move around the sun in a
(i) Circular path
(ii) Rectangular path
(iii) Elongated path
Answer: (i) Elongated path
(d) The Pole Star indicates the direction to the
(i) South
(ii) North
(iii) East
Answer: (ii) North
(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter
(ii) Mars and Jupiter
(iii) The Earth and Mars
Answer: (ii) Mars and Jupiter
3. Fill in the blanks.
(a) A group of ________ forming various patterns is called a ________.
(b) A huge system of stars is called________.
(c) ________is the closest celestial body to our earth.
(d) ________is the third nearest planet to the sun.
(e) Planets do not have their own________ and ___________________.
(a) stars and constellation
(b) galaxy
(c) Moon
(d) Earth
(e) heat and light
ALL IMPORTANT QUESTIONS RELATED THIS CHAPTER FOR UPSC:-
FAQ-
2°30′ W
82°30′ E
92°30′ W 92°30′ E
2. Who amongst the following was the first to state that the earth was spherical? [2001]
Aristotle
Copernicus
Ptolemy Strabo
3. If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the: [2001]
Equator
Tropic of Cancer
South Pole North Pole
4. Which one of the following statements is correct with reference to our solar system? [2002]
The earth is the densest of all the planets in our solar system
The predominant element in the composition of earth is silicon
The sun contains 75 percent of the mass of the solar system The diameter of the sun is 190 times that of the earth
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