Name the lowermost layer of the atmosphere.
Exosphere
Mesosphere
Troposphere
Stratosphere
Which one of the following gases constitutes the major portion of the atmosphere ?
Oxygen
Nitrogen
Carbon dioxide
None of these
_________________ is the uppermost layer of the atmosphere.
Ionosphere
Changes in climate and weather take place in ______________ layer of the atmosphere.
None of these.
Burning of fossil fuel increases the volume of______________ in the atmosphere.
Hydrogen
Name the layer of atmosphere above the stratopause.
Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation ?
Helium
Name the layer of atmosphere above the tropopause.
Thickness of the troposphere is greatest at the __________________
Poles
Equator
Axis
The density of atmosphere ________________ with increasing altitude.
Decreases
Increases
Remain same