Which of the following statements with regard to rainfall in India is/...
The summer or south-west monsoon comes in from the direction of Africa, and brings heavy rain to the west coast and large areas of northern India between June and August. The Western Ghats intercepts the Southwestern Monsoon winds. The Western slopes of the mountains experience heavy annual rainfall (with 80 percent of it falling during the southwest monsoon from June to September), while the Eastern slopes are drier; rainfall also decrease from South to North.
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Which of the following statements with regard to rainfall in India is/...
Introduction:
Rainfall in India is primarily influenced by the monsoon winds. The South-West monsoon is the most significant factor contributing to the country's rainfall. Additionally, the topography and geographical features of different regions in India also affect the distribution of rainfall.
Explanation:
1. Most of the rainfall in India is due to the South-West monsoon:
The South-West monsoon, also known as the summer monsoon, is responsible for the majority of rainfall in India. It occurs from June to September and brings moisture-laden winds from the Arabian Sea and the Indian Ocean. These winds travel across the Indian subcontinent, resulting in widespread rainfall. The South-West monsoon contributes around 75-90% of the total annual rainfall in most parts of India, making statement 1 correct.
2. In South India, rainfall decreases away from the Eastern Ghats:
The Eastern Ghats are a mountain range that runs parallel to the eastern coast of India. These mountains act as a barrier for the South-West monsoon winds, forcing them to rise and cool down, leading to orographic rainfall on the windward side. As a result, regions along the eastern slopes of the Eastern Ghats receive higher rainfall compared to areas away from the mountains. Therefore, statement 2 is correct.
Conclusion:
In conclusion, both statements 1 and 2 are correct. Most of the rainfall in India is due to the South-West monsoon, and in South India, rainfall decreases away from the Eastern Ghats. These factors play a crucial role in determining the distribution of rainfall across different regions of the country.