Question

Most of the rainfall in India is brought in by the _______.
A. North-east monsoon.
B. Retreating monsoon.
C. Western disturbances.
D. South-west monsoon.

Answer 1

Hint:- The monsoon which brings maximum rainfall in most parts of India lasts from June to September.
-The places to receive rainfall first are coasts of Western Ghats, Kerala and Lakshadweep islands.
-Eastern coast of India is not much affected by it.

Complete answer:
Let us look into the options and discuss the solution.
Option A. North-West monsoon- The southern peninsular district gets downpour in the main portion of October too, however, that is owing to the withdrawing summer rainstorm. The mid-year storm season closes on September 30 however the withdrawal doesn't occur incidentally.
-Towards the south withdrawal happens over a time of three to about a month. It for the most part begins around the second seven day stretch of September and proceeds till about the second seven day stretch of October, bringing precipitation as it withdraws. It brings heavy rainfall only in eastern coast of India accounting for 20% of overall rainfall. Thus, it is an incorrect option.
Option B. Retreating monsoon is another name for the North-West monsoon- The above explanation holds good for this option. Thus, it is an incorrect option.
Option C. Western disturbances - a low weight territory or a box over the surface or the upper-air in the westerly breezes system, north of 20°N, causing changes in weight, wind example, and temperature fields. It is joined by shadiness, with or without precipitation.
-Despite the fact that WDs move over the Indian area consistently, they are on their top during cold weather for a very long time in January and February. Their impact is negligible during the rainstorm months in India. Western Disturbances cause rainfall in non-monsoonal months over Northwest India in Punjab, Haryana, Uttar Pradesh, and Delhi. It is an incorrect option.
Option D. The South-West monsoon- causes over 80% of the precipitation over the nation from June to September. The south-west rainstorm begins from the Indian sea. The south-west storm is isolated into two branches: The Arabian ocean branch and the Bay of Bengal branch.

Based on the above explanation, the correct answer is Option D.

Note:- During summers when the focal and northern pieces of India get extremely blistering, a rainstorm (twists) blows over the Indian Ocean towards these zones. In transit, they retain water from the Indian Ocean and once they arrive at the southern tip of India they hit the mountains. That is the point at which the sprinkle of water starts.
-India's late spring rainstorm speaks to one of the most sensational occasional climate changes on the planet. Indeed, even a slight move in its example can prompt dry seasons or floods and have ramifications on food creation.