Air and Atmosphere

The layer just above the surface of the Earth

(a)  

The gas required by green plants for photosynthesis (a)  

The increase in temperature across the globe (a)  

The (a)   is the boundary between the thermosphere and the mesosphere.

which layer of atmosphere is associated with the ionosphere?

(a)  

which layer of the atmosphere absorbs the harmful rays of the Sun?

(a)  

The atmospheric layer that lies just above the thermosphere

(a)  

The gas which constitutes 78 percent of the atmosphere

(a)  

Clouds,Rain,Hail,Glacier (a)   pick the odd one out

The gas that keeps the Earth warm

(a)