Earth - Section 1

36:  

The earth rotates around its axis from

A.

north to south

B.

east to west

C.

south to north

D.

west to east

 
 

Option: D

Explanation :

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37:  

The inclination of the earth's axis to the orbital plane is

A.

21 1
      2

B.

23 1
      2

C.

66 1
      2

D.

90o

 
 

Option: C

Explanation :

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38:  

The mean radius of the earth is approximately

A.

3200 Km

B.

6400Km

C.

9600Km

D.

12800Km

 
 

Option: B

Explanation :

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39:  

One degree of the circumference of the earth measures (approx.)

A.

100 Km

B.

111 Km

C.

151 Km

D.

175Km

 
 

Option: B

Explanation :

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40:  

Heat received by earth from the Sun is known as

A.

Insolation

B.

Solar heat

C.

Solar radiation

D.

Thermal radiation

 
 

Option: A

Explanation :

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