Question

Which of the following phenomena may lead to rain near the equatorial region?

• A. The warm air rises up.
• B. The colder air settles down.
• C. The wind speed increases due to uneven heating.
• D. All of the above

Answer 1

The correct option is D All of the above

The uneven heating of the air takes place due to the greater intensity of sunlight at the equator as compared to that of poles. Due to greater intensity of sunlight at the equator the air gets heated up, the air molecules absorbs the heat and the inter molecular forces between the air molecules becomes weak and its kinetic energy increases. The air molecules becomes lighter and rises up. This creates a low pressure zone on the equator. The air is cold at the poles as the intensity of sunlight is less so the cold air settles down and creates a high pressure zone above the poles. The air moves from high pressure to low pressure zone which is from poles to the equator at high speed and this may lead to precipitation of water vapor as rain.

So, the correct answer is option A.