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UPSC Prelims 2025 Paper-I 📅 25 May, 2025

Consider the following statements:
Statement I: In January, in the Northern Hemisphere, the isotherms bend equatorward while crossing the landmasses, and poleward while crossing the oceans.
Statement II: In January, the air over the oceans is warmer than that over the landmasses in the Northern Hemisphere.

Which one of the following is correct in respect of the above statements?

A
Both Statement I and Statement II are correct and Statement II explains Statement I
B
Both Statement I and Statement II are correct but Statement II does not explain Statement I
C
Statement I is correct but Statement II is not correct
D
Statement I is not correct but Statement II is correct
Result Summary
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UPSC Prelims
2025 • 25 May, 2025 • Paper-I
Consider the following statements:
Statement I: In January, in the Northern Hemisphere, the isotherms bend equatorward while crossing the landmasses, and poleward while crossing the oceans.
Statement II: In January, the air over the oceans is warmer than that over the landmasses in the Northern Hemisphere.

Which one of the following is correct in respect of the above statements?
Correct Answer
Both Statement I and Statement II are correct and Statement II explains Statement I
In winter (January in the Northern Hemisphere), land cools much faster than water (Statement II). Consequently, to find points of equal temperature, isotherms m......
Ref/Book : UPSC Prelims 2025
Ref. Subject Geography
Chapter -
Ref. Topic Climatology
Pg. No -
💡 Analysis & Explanation
Introduction ▼
In winter (January in the Northern Hemisphere), land cools much faster than water (Statement II). Consequently, to find points of equal temperature, isotherms must dip south (equatorward) over cold landmasses and push north (poleward) over the relatively warmer oceans (Statement I).
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