universe & solar system section 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Albedo effect would be relatively higher in

a) noon

b) late evening only

c) early morning only

d) early morning and late evening

Question : 2

What does the term ‘sial’ refer to ?

a) Ocean bottom rocks

b) A rock which is rich in calcium

c) The core part of the earth

d) Earth’s surface layer

Question : 3

Which one of the following is the time required for the earth to return to a given point in its orbit with reference to fixed stars called ?

a) Tropical year

b) Sidereal year

c) Solar year

d) Lunar year

Question : 4

Consider the following statements:

1. Since Venus is seen in the East in morning and in the West in evening. It is called ‘Morning star’ as well as ‘Evening star’.
2. The Earth looks blue when seen from the space due to the presence of large amount of water, hence it is called ‘Blue Planet’.

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Question : 5

When does solar eclipse take place ?

a) When the moon is between the sun and earth

b) When the moon does not lie on the line joining the sun and earth

c) When the earth is between the moon and sun

d) When the sun is between the moon and earth

Question : 6

What is meant by the term “Midnight Sun”?

a) Very bright moon

b) Sun shining in the polar circle for long time

c) Rising sun

d) Twilight