universe & solar system section 12 MCQ Questions & Answers Detailed Explanation

Question : 1

What is the primary cause of the day and night ?

a) Inclination of the earth’s axis and its rotation

b) Inclination of the earth’s axis and its revolution

c) Earth’s rotation on its axis

d) Earth’s annual motion

Question : 2

Variations in the length of daytime and nighttime from season to season are due to

a) latitudinal position of the place

b) revolution of the earth on a tilted axis.

c) the earth’s revolution round the sun in an elliptical manner

d) the earth’s rotation on its axis

Question : 3

Unlike the fluid core of the Earth the core of the Moon is

a) Viscous liquid

b) Solid

c) Volatile gas

d) Plasma

Question : 4

Which one of the following planets is the brightest?

a) Venus

b) Jupiter

c) Mercury

d) Mars

Question : 5

The Earth is located between

a) Venus and Jupiter

b) Mercury and Venus

c) Mars and Jupiter

d) Venus and Mars

Question : 6

An Earthquake epicentre is the

a) approximate centre of a group of related Earthquakes

b) point on the surface directly above where the rupture along the fault zone occur

c) point within the Earth where the movement along the fault occurs

d) point where the seismograph is located