Consider these statements and choose the correct option: (A) The insolation received at the surface varies from the equator to the poles. (B) The crowded high-rise buildings of cities trap cold air and decrease the city temperature. (C) Variation in temperature over the sea is less compared to that over land.

Consider the following statements about air pressure and choose the appropriate option: (A) Air above us presses us with a great force on our bodies, however, we do not feel it. (B) Air presses us from all directions and our body exerts a counter-pressure.

Read the following statements and choose the appropriate option. Statement (A): Almost all weather phenomena occur in the thermosphere. Statement (B): Radio waves transmitted from the earth are reflected back to the earth by the thermosphere.