Atmosphere (Composition, Layers) NDA Questions

NDA Physical Geography

Atmosphere (Composition, Layers) MCQ Questions


13.
Which layer of the atmosphere contains the majority of the Earth's weather?
A.
Thermosphere
B.
Troposphere
C.
Stratosphere
D.
Exosphere
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ANSWER :
B. Troposphere
14.
What is the role of the mesosphere in the atmosphere?
A.
It burns up meteoroids
B.
It protects against solar radiation
C.
It contains most of the Earth's weather
D.
It helps in the formation of clouds
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ANSWER :
A. It burns up meteoroids
15.
Pick out the correct statement:
A.
The troposphere is the coldest layer
B.
The stratosphere contains the ozone layer
C.
The mesosphere contains the highest temperatures
D.
The thermosphere is closest to the Earth
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ANSWER :
B. The stratosphere contains the ozone layer
16.
The upper boundary of the mesosphere is called the ________.
A.
Mesopause
B.
Stratopause
C.
Tropopause
D.
Exopause
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ANSWER :
A. Mesopause
17.
What is the primary characteristic of the exosphere?
A.
It is where most of Earth's weather occurs
B.
It contains the ozone layer
C.
It is where atoms and molecules escape into space
D.
It is the densest layer of the atmosphere
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ANSWER :
C. It is where atoms and molecules escape into space
18.
The layer of the atmosphere where commercial airplanes fly is the ________.
A.
Stratosphere
B.
Thermosphere
C.
Mesosphere
D.
Exosphere
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ANSWER :
A. Stratosphere