1. Which is the innermost layer of
atmosphere?
b) Stratosphere.
c) Troposphere.
d) Biosphere.
2. When traveling by air, your airplane flies through this zone of atmosphere:
a) Higher part of the
Troposphere not beyond.
b) Mainly the lower part of the Stratosphere.
c) Lower part of the Mesosphere.
d) None of the above.
3. Ozone molecules useful in
blocking UV rays of the sun are dispersed at this altitude from the surface of
earth:
a) Only near the surface.
b) From surface to 11 Kms.
c) From 11 Kms to 30 Kms.
d) From 31 to 50 Kms.
4. The temperature in the
Stratosphere increases with height as compared to Troposphere because:
a). Both contain Ozone but concentration of
ozone is higher in Stratosphere than in Troposphere
b)
Sun is closer to stratosphere compared to troposphere.
c) Clouds are present in Troposphere
which cool the later.
d) None of the above.
5. How much of
the earth’s air is found in the atmosphere inner most layer (troposphere)
a) 75 %
b) 80 %
c) 65 %
d) 57 %