Q. Consider the following statements:
1.Cloud bands block sunlight, reducing land temperatures and weakening monsoons.
2.The Boreal Summer Intraseasonal Oscillation (BSISO) is responsible for regulating wet and dry spells of the Indian monsoon.
Which of the statement(s) given above is/are correct?
Answer: B
Notes:
Explanations –
Statement 1 is incorrect. Cloud bands do not primarily block sunlight to weaken monsoons. Instead, they play a crucial role in transporting moisture and influencing rainfall patterns. The strength of cloud bands is directly linked to the density of rainfall during monsoon wet spells.
Statement 2 is correct. The BSISO governs the alternation between wet and dry spells during the Indian monsoon season by driving the movement of cloud bands from the equator towards India. It is a key atmospheric oscillation influencing monsoon dynamics.
Source: The Hindu
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