A. Deserts
A.
B. Equatorial regions
B.
C. Polar regions
C.
D. Mediterranean regions
D.
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
The maximum precipitation on Earth occurs in B) Equatorial regions.
Why equatorial regions receive the most rainfall:
- High temperatures: The equator receives direct, intense solar radiation, causing high temperatures year-round.
- Convection: The intense heat warms the air and evaporates a large amount of water. The warm, moist air rises through a process called convection.
- Condensation and cloud formation: As the air rises, it cools. This cooling causes the water vapour to condense and form towering cumulus clouds.
- Heavy rainfall: The moisture-laden clouds produce frequent and heavy rainfall, often as intense afternoon thunderstorms.
- Intertropical Convergence Zone (ITCZ): The equatorial region is dominated by the ITCZ, a band of low pressure where trade winds from both hemispheres converge. This convergence forces warm, moist air to rise, enhancing cloud formation and precipitation.