Question

Consider the following statements.
(a) The amount of annual rainfall in the northern plains of India decreases from east to west.
(b) The Coromandel Coast receives winter rainfall.
(c) The delta region of the eastern coast is frequently strucked with cyclones.
(d) The speed of jet streams increases during winter.
Which of the statements given is/are correct?

• A. a only
• B. a, b, c
• C. b, c, d
• D. a, b, c, d

Answer 1

The correct option is A a only

(A) Since rainfall decrease from east to west in northern India because of the progressive decrease in the humidity of the winds. As the moisture-bearing winds of the Bay of Bengal branch move further and further island, they exhaust most of the moisture they carry along with them. This consequently leads to a gradual decrease.

(B) Coromandel coast receives its rain during the winter season because the northeast monsoon picks up moisture from the Bay of Bengal while moving to the south due to low pressure.

(C) The delta region of the eastern coast is frequently struck by cyclones because the cyclonic depressions which originate over the Andaman Sea generally cross the Eastern coasts of India and cause heavy and widespread rain. These cyclones are often very destructive. The thickly populated deltas of the Godavari, the Krishna and the Kaveri are frequently struck by cyclones which cause great damage to life and property. Sometimes these cyclones arrive at the coasts of Odisha, West Bengal, and Bangladesh.

(D) Jet streams are faster in the winter season due to temperature differences in the northern and southern hemispheres. Their speed increase from 125 KMPH to 443 KMPH

Therefore, the correct answer is the option (D).