universe & solar system section 3 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

Which one of the following conditions is most relevant for the presence of life on mars?

a) Occurrence of ice cap and frozen water

b) Occurrence of ozone

c) Thermal conditions

d) Atmospheric composition

Question : 22 [PSC (Pre) 2016]

Consider the following statements.

1. The albedo of an object determines its visual brightness when viewed with reflected light.
2. The albedo of Mercury is much greater than the albedo of the Earth.

a) Both 1 and 2

b) Neither 1 nor 2

c) Only 2

d) Only 1

Question : 23

Consider the following two statements, one labelled as the Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer by using the codes given below:
Assertion (A):
To orbit around Sun, the planet Mars takes lesser time than time taken by the Earth.
Reason (R):
The diameter of the planet Mars is less than that of the Earth. Codes:

a) A is true, but R is false.

b) A is false, but R is true.

c) Both A and R are true, but R is not the correct explanation of A.

d) Both A and R are true and R is the correct explanation of A.

Question : 24

The shortest route between two places is along the

a) rivers

b) direction of winds

c) longitudes

d) latitudes

Question : 25

Match List I with List II and select the correct answer using the code given below the Lists :  

a) 3 2 4 1

b) 3 4 2 1

c) 1 2 4 3

d) 1 4 2 3