universe & solar system section 6 MCQ Questions & Answers Detailed Explanation

Question : 1

Which is true about Planets?

a) Planets do not shine though they are luminous body

b) Planets are luminous body and also shine

c) Planets shine though they are non-luminous bodies

d) Planets are non-luminous bodies and don’t shine

Question : 2

By how much degree the earth is inclined on its own Axis

a) 24 1/2

b) 69 1/2

c) 66 1/2

d) 23 1/2

Question : 3

Which of the following phenomena might have influenced the evolution of organisms?

1. Continental drift
2. Glacial cycles.

a) 2 only

b) Both 1 and 2

c) 1 only

d) (CSAT - 2014)

e) Neither 1 nor 2

Question : 4

The Earth is an oblate spheroid and not a perfect sphere. This is because

1. The Earth has a rotational motion and the rotational speed increases as one goes from the poles towards the equator.
2. The equator experiences greater gravitational pull from the sun.
3. The intensity of sunlight received at the equator is greater than that at the poles.

a) Only 3

b) All of these

c) 1 and 2

d) Only 1

Question : 5

Isostasy is

a) the phenomenon when the earth’s crust gains weight due to mountain building or glaciation, it deforms and sinks deeper into the mantle.

b) All are correct

c) due to which crust floats on top of the mantle like ice cubes in water.

d) the property of the continental and oceanic crust, that they have the ability to rise and sink.

Question : 6

The light from the Sun reaches the Earth in about—

a) 10 seconds

b) 10 minutes

c) 8 minutes

d) 8 seconds