Explanation: Ladakh, a region in the northern part of India, is known for its arid and semi-arid climate, which is characterized by very low rainfall. This region is located in the rain shadow area of the Himalayas, which means that the high mountain range blocks moisture-laden winds from the Indian Ocean, resulting in a significant reduction in precipitation. The annual rainfall in Ladakh is typically less than 100 mm, making it one of the driest regions in India.
In contrast, the Western Ghats, located along the western coast of India, receive heavy rainfall, especially during the southwest monsoon season. The Western Ghats act as a barrier to the moisture-laden winds from the Arabian Sea, causing them to rise and cool, leading to heavy precipitation. The annual rainfall in this region can exceed 2500 mm, making it one of the wettest regions in India.
The Andaman and Nicobar Islands, situated in the Bay of Bengal, also receive heavy rainfall throughout the year. These islands are influenced by both the northeast and southwest monsoons, leading to a high annual rainfall that can be as high as 3000 mm. The islands' location and the monsoon influence make them a region with significant precipitation.
Meghalaya, particularly the Khasi Hills, is renowned for receiving some of the highest rainfall in the world. Cherrapunji and Mawsynram, located in Meghalaya, are famous for their extremely high annual rainfall, which can exceed 11,000 mm. The region's location and the influence of the monsoons contribute to its heavy rainfall.
Understanding the climatic conditions and rainfall patterns of different regions in India is crucial for comprehending the geographical and environmental characteristics of the country. The rain shadow effect, monsoon influence, and geographical location play significant roles in determining the amount of rainfall a region receives. Ladakh, being in a rain shadow area, stands out as the region that does not receive heavy rainfall, unlike the Western Ghats, Andaman and Nicobar Islands, and Meghalaya, which are known for their high precipitation levels.