What is the primary cause of convectional rainfall?

Correct option is C

The correct answer is (c) Heating of air that rises and cools.
• Convectional rainfall is caused by intense surface heating, mainly in tropical regions.
• Heated air becomes lighter, rises upward, and cools at higher altitudes.
• Cooling leads to condensation and sudden, heavy rainfall.
Information Booster:
• Common in equatorial regions like the Amazon Basin and Congo Basin.
• Usually occurs in the afternoon due to maximum heating.
• Rainfall is short-duration but intense, often with thunderstorms.
• Also called zenithal rainfall.
Additional Knowledge:
• Option (a) refers to frontal rainfall.
• Option (b) explains orographic rainfall.
• Polar air is cold and dry, not suitable for convectional rain.