universe & solar system section 8 MCQ Questions & Answers Detailed Explanation

Question : 1

The inexhaustible source of energy of the stars is due to

a) conversion of Helium to Hydrogen.

b) excess of oxygen that helps burning and release of energy.

c) conversion of Hydrogen to Helium.

d) decay of radioactive elements.

Question : 2

When any object is taken from the Earth to the Moon

a) There is no change in its weight

b) It becomes totally weightless

c) Its weight decreases

d) Its weight increases

Question : 3

Consider the following statements:

1. The Earth is nearest to the Sun on about January 3.
2. Earth is farthest from the Sun on about July

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Question : 4

Statement (A):
Moving from one place on Earth to another place of high latitude, the weight of an object decreases.
Reason (R):
Earth is not perfect sphere.
Choose the correct answer by using code given below.

a) (A) is true, but (R) is wrong

b) (A) is wrong, but (R) is true

c) (A) and (R) both are true, but (R) does not explains (A) properly

d) (A) and (R) both are true and (R) explains (A) properly

Question : 5

Which of the following are true with respect to fold mountains?

1. Their tops are often buried beneath snow and ice.
2. They form rugged peaks.
3. They are caused by contraction of the earth’s crust.
4. They contain a core composed of metamorphic and igneous rocks.

a) 1 and 2

b) 1 and 4

c) 2, 3 and 4

d) 1, 3 and 4

Question : 6

Which is a celestial phenomenon occuring due to stars?

a) Rainbow

b) Comet

c) Black hole

d) Ozone hole