INDIAN GEOGRAPHY

Detailed explanation-1: -Rainfall in India is not associated with Anticyclones. An ‘anticyclone’ is opposite to a cyclone, in which winds move into a low-pressure area. In an anticyclone, winds move out from a high-pressure area with wind direction clockwise in the northern hemisphere, anti-clockwise in the southern hemisphere.

Detailed explanation-2: -Areas of high pressure are called anticyclones, whilst low pressure areas are known as cyclones or depressions. Each brings with it different weather patterns. Anticyclones typically result in stable, fine weather, with clear skies whilst depressions are associated with cloudier, wetter, windier conditions.

Detailed explanation-3: -Anticyclones aloft can form within warm-core lows such as tropical cyclones, due to descending cool air from the backside of upper troughs such as polar highs, or from large-scale sinking such as a subtropical ridge.

Detailed explanation-4: -The rainfall distribution in India is impacted by the Thar Desert and the Himalayas. Temperature and pressure changes over the Indian Ocean, the Arabian Sea, the Bay of Bengal and the southern part of the Pacific Ocean also play a significant role in the monsoon rains over the country.

Detailed explanation-5: -Option (3) is correct. Explanation: Other options of cyclone, frontal and convectional are associated with the rainfall.