4. Now find out
(i) Why are Thiruvananthapuram and Shillong rainier in June than in July?
() Why is July rainier in Mumbai than in Thiruvananthapuram?
() Why are southwest monsoons less rainy in Chennai?
(iv) Why is Shillong rainier than Kolkata?
(v) Why is Kolkata rainier in July than in June unlike Shillong which is rainier in June than in July?
(vi) Why does Delhi receive more rain than Jodhpur.
Answers
Answer:
1) The south-west monsoons hit Thiruvananthapuram and Shillong around the first of June. Thiruvananthapuram receives rain from the Arabian Sea branch while Shillong receives rain from the Bay of Bengal branch
2)Both Mumbai and Thiruvananthapuram receive rainfall from South West Monsoons in Summer. South West Monsoons reach Thiruvananthapuram by 1st of June. But in July, there is a break in monsoons thereby reducing rainfall. ... Hence, July is rainier in Mumbai.
3) The Arabian Sea branch of South West Monsoons strike west ghats, first. After crossing, west ghats, these winds descend down the leeward slope of west ghats where they do not give much rain. ... So, these winds give less rainfall in Chennai.
4) Shillong is in a hilly area and the hills trap the monsoon winds, so that Shillong becomes rainier than Kolkata.
5) Shillong receive most of rainfall from Bay of Bengal branch of monsoons. ... In Kolkata, in July, cyclonic depressions increase the amount of rainfall by monsoons. But in June, there is no rainfall due to cyclones. So, July is rainier.
6) Delhi receives more rainfall since it is better located with respect to the arrival of the monsoons and the western disturbances. It gets mild rains from both the branches of S.W. monsoons as well as the western disturbances. Jodhpur gets rains mainly from the Arabian Sea branch of the monsoon.