Classical

Atmosphere & Winds - Section 2

21:  

Which of the following constituents of the atmasphere are important from the climatic point of view?
1. Nitrogen
2. Oxygen
3. Carbon dioxide

A.

1 and 2

B.

2 and 3

C.

1, 2 and 3

D.

only 3

 
 

Option: D

Explanation :


22:  

The instrument used for finding out wind  direction is

A.

Anemometer

B.

Wind vane

C.

Wind gauze

D.

Hygrometer

 
 

Option: B

Explanation :


23:  

What is the main cause of the movement in the earth's atmosphere?

A.

Difference in air pressure

B.

Solar energy

C.

Difference in temperature

D.

Wind

 
 

Option: B

Explanation :


24:  

The tropical cyclones of the Bay of Bengal are usually called

A.

Tornadoes

B.

Hurricanes

C.

Typhoons

D.

Depressions

 
 

Option: D

Explanation :


25:  

The percentage of oxygen in the atmospheric  oxygen is approximately

A.

10%

B.

20%

C.

30%

D.

70%

 
 

Option: B

Explanation :




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