GK Questions related to Atmosphere for Postal/Sorting Assistant Exam

Friends…last year a few questions have been asked in the PA/SA Exam related to different layers of atmosphere and gases present. 

1.      What layer does most weather occur in?

A.    Troposphere

B.     Stratosphere

C.    thermosphere

D.    mesosphere

2.      At what layer do most air-planes fly at the top of?

A.    stratosphere

B.     thermosphere

C.    mesosphere

D.   troposphere

3.      What is the coldest layer in the atmosphere?

A.    troposphere

B.     thermosphere

C.    stratosphere

D.   mesosphere

4.      What is the most common gas in the atmosphere?

A.    oxygen

B.     carbon dioxide

C.    nitrogen

D.    methane

5.      What is the atmospheric layer closest to the ground?

A.    mesosphere

B.     troposphere

C.    thermosphere

D.    stratosphere

6.      What atmospheric layer has most of the clouds?

A.    thermosphere

B.     stratosphere

C.    troposphere

D.    mesosphere

7.      What layer protects us by burning up most meteors?

A.    stratosphere

B.     mesosphere

C.    troposphere

D.    thermosphere

8.      What layer has the ozone layer in it?

A.    mesosphere

B.     troposphere

C.    thermosphere

D.   stratosphere

9.      What is the hottest layer in the atmosphere?

A.  mesosphere                                       

B.     thermosphere

C.    stratosphere

D.    troposphere

10. What happens to temperature as you go higher in the stratosphere?

A.    it stays the same

B.     it gets hotter

C.    it gets colder

D.    it is always changing

11. What layer do weather balloons reach before they burst?

A.    mesosphere

B.     troposphere

C.    stratosphere

D.  thermosphere