Choose Language

Select your preferred reading language
🇬🇧
English
🇮🇳
हिन्दी
Full View
UPSC Prelims 2021 Paper-1 📅 10 Oct, 2021

Consider the following statements:
1. In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence of trade winds.
2. In the temperate zone, westerlies make the eastern sections of oceans warmer than the western sections.

Which of the statements given above is/are correct?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Result Summary
Logo

APEDIA

UPSC Prelims
2021 • 10 Oct, 2021 • Paper-1
Consider the following statements:
1. In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence of trade winds.
2. In the temperate zone, westerlies make the eastern sections of oceans warmer than the western sections.

Which of the statements given above is/are correct?
Correct Answer
Both 1 and 2
Tropical Wind Mechanics: In the tropical latitudes, prevailing Trade Winds blow consistently from the east towards the west. These winds physically push the sun......
💡 Analysis & Explanation
Tropical Wind Mechanics
In the tropical latitudes, prevailing Trade Winds blow consistently from the east towards the west. These winds physically push the sun-warmed surface water across the ocean basin, causing it to pile up on the western boundaries (like the Western Pacific Warm Pool). Additionally, this wind action causes upwelling of cold water on the eastern edges. Thus, statement 1 is correct.
Temperate Wind Mechanics
Conversely, in the mid-latitudes (temperate zones), the dominant winds are the Westerlies, which blow from the west towards the east. They push warm ocean surface waters towards the eastern sections of the ocean basins, making them relatively warmer compared to the western sides at the same latitude. Hence, statement 2 is also correct.
Conclusion
Both atmospheric wind patterns accurately explain the thermal distribution across ocean basins.