Which combination of factors is most responsible for widespread rainfall over mainland India during the summer season?
Differential heating between the Indian landmass and surrounding seas creating low pressure over north-western India
In summer the Indian landmass heats up much faster than the surrounding Indian Ocean, Arabian Sea and Bay of Bengal.
This creates an intense low-pressure area over north-western India, while high pressure lies over the seas. Moist south-west monsoon winds blow from the sea towards this low and bring widespread rain over the mainland.
Rainfall only from heating over the Deccan is local; the retreating north-east monsoon brings rain mainly to Tamil Nadu in winter; western disturbances bring winter rain to north-west India.
Hence, Differential heating between the Indian landmass and surrounding seas creating low pressure over north-western India.
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Which of the following pairs of neighbouring countries are landlocked and share only land borders with India?
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