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Question No. 25Interactive Test Mode
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Q25. Consider the following statements : Statement-I: The temperature contrast between continents and oceans is greater during summer than in winter. Statement-II: The specific heat of water is more than that of the land surface. Which one of the following is correct in respect of the above statements?

Consider the following statements : Statement-I: The temperature contrast between continents and oceans is greater during summer than in winter. Statement-II: The specific heat of water is more than that of the land surface. Which one of the following is correct in respect of the above statements?

Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2023 • Geography

Correct Answer: Option (D) — Statement-I is incorrect but Statement-II is correct

Concept & Option Breakdown

Standard Reference Verified

Statement-I is incorrect: Land loses heat much faster than water in winter, leading to extreme sub-zero continental temperatures while nearby oceans remain relatively mild (creating a temperature contrast of 30–40°C or more). In summer, both land and sea are warm, resulting in a smaller temperature contrast (about 15–20°C). Thus, the contrast is greater in winter, not summer. Statement-II is correct: Water has a substantially higher specific heat capacity than land/dry soil, meaning it heats up and cools down much more slowly.

Elimination Heuristic & Exam Approach

Evaluate seasonal extremes: in high latitudes, winter continental interiors plunge to -30°C while oceans stay around 0°C to 5°C (huge delta), whereas summer differences are much more moderate.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2023 (Q25)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Climatology & Atmosphere
Official Answer KeyOption (D) — Statement-I is incorrect but Statement-II is correct

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Frequently Asked Questions — UPSC Prelims 2023 Q25

What is the official answer for UPSC Prelims 2023 GS Paper I Question 25 (Geography)?

The official UPSC answer key for this 2023 Geography (Climatology & Atmosphere) question is Option (D): "Statement-I is incorrect but Statement-II is correct". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2023 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Climatology & Atmosphere". You can explore all repeated questions from Climatology & Atmosphere in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Climatology & Atmosphere UPSC Prelims question using option elimination?

Evaluate seasonal extremes: in high latitudes, winter continental interiors plunge to 30°C while oceans stay around 0°C to 5°C (huge delta), whereas summer differences are much more moderate.

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