Atmosphere & Winds - Section 2

36:  

Anemometer is an instrument used to

A.

Find the wind direction

B.

Measure humidity

C.

Measure wind speed

D.

Measure precipitation

 
 

Option: C

Explanation :

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37:  

Which of the following gases in the atmosphere provides a shield against the harmful ultraviolet rays of the sun?

A.

Carbon monoxide

B.

Oxygen

C.

Nitrogen

D.

Ozone

 
 

Option: D

Explanation :

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38:  

Which ofille following is the uppermost layer of the atmosphere?

A.

Stratosphere

B.

Mesosphere

C.

Ionosphere

D.

Exosphere

 
 

Option: D

Explanation :

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39:  

Which layer of the Earth's atmosphere-reflects back the radio waves of the Earth's surface?

A.

Stratosphere

B.

Mesosphere

C.

Ionosphere

D.

Exosphere

 
 

Option: C

Explanation :

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40:  

The Planetary winds variously known as roaring forties, furious fifties and stormy sixties are

A.

Trade Winds

B.

Cyclones

C.

Polar winds

D.

Westerlies

 
 

Option: D

Explanation :

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