UPSC CSE Prelims
Question 54
Consider the following statements :
Statement I : The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions.
Statement II : Subtropical and temperate areas have less dry winds.
Which one of the following is correct in respect of the above statements?
View correct answer and explanation
Correct answer: C
Correct Option: C (Statement I is correct but Statement II is not correct)
Explanation: Dry subtropical deserts and some temperate continental interiors release abundant dust into the atmosphere, while humid equatorial and cold polar areas generally contribute less. The claim that the former regions have fewer dry winds is incorrect.
Statement / Pair / Item-wise Analysis:
I: True-aridity, exposed soil and dust storms increase particle loads.
II: False-dry winds are a major dust-transport mechanism in subtropical and temperate drylands.
Option-wise Analysis:
A. Incorrect-this does not reflect the actual truth values or explanation relationship of the statements.
B. Incorrect-this does not reflect the actual truth values or explanation relationship of the statements.
C. Correct-this matches the facts and the item-wise assessment above.
D. Incorrect-this contradicts the specific facts evaluated in the analysis above.