A. I, II and III
A.
B. I and II
B.
C. II and III
C.
D. III and IV
D.
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
The main reasons for the south-west monsoon in India are the development of a low pressure in north-west India and the deflection of trade winds.
Low pressure:
During summer, the continental land masses in the northern hemisphere heat up more than the oceans, creating a low pressure zone over India and Central Asia. This low pressure zone attracts moist winds from the high pressure area in the south of the Indian Ocean.
Trade winds:
These winds originate in the Southern Hemisphere and are deflected to the right by the Coriolis force in the Northern Hemisphere as they cross the equator. They then enter the peninsular part of India as the south-west monsoon.