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GS Paper IUPSC Prelims 2002
Human & Political Geography
Question No. 62Interactive Test Mode
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Q62. Consider the following climatic and geographical phenomena : 1. Condensation 2. High temperature and humidity 3. Orography 4. Vertical wind Thunder cloud development is due to which of these phenomena?

Consider the following climatic and geographical phenomena :

  1. Condensation
  2. High temperature and humidity
  3. Orography
  4. Vertical wind Thunder cloud development is due to which of these phenomena?
Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2002 • Geography

Correct Answer: Option (D) — 1, 2 , 3 and 4

Concept & Option Breakdown

Standard Reference Verified

Thundercloud (cumulonimbus) development requires:

  1. Condensation: Releases latent heat of condensation, providing the primary thermodynamic energy driving storm vertical growth.
  2. High temperature and humidity: Provides buoyant, warm, moisture-rich air parcels at ground level.
  3. Orography: Physical relief forces air to rise mechanically (orographic uplift), triggering instability.
  4. Vertical wind (updrafts/vertical wind shear): Strong vertical currents carry moisture upwards to sustain vertical cloud development. All four phenomena contribute directly to thundercloud genesis.
Elimination Heuristic & Exam Approach

All listed mechanisms contribute to the key requirements of thunderstorm formation: moisture, instability, lift, and condensation.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2002 (Q62)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Human & Political Geography
Official Answer KeyOption (D) — 1, 2 , 3 and 4

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Frequently Asked Questions — UPSC Prelims 2002 Q62

What is the official answer for UPSC Prelims 2002 GS Paper I Question 62 (Geography)?

The official UPSC answer key for this 2002 Geography (Human & Political Geography) question is Option (D): "1, 2 , 3 and 4". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2002 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Human & Political Geography". You can explore all repeated questions from Human & Political Geography 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 Human & Political Geography UPSC Prelims question using option elimination?

All listed mechanisms contribute to the key requirements of thunderstorm formation: moisture, instability, lift, and condensation.

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