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GS Paper IUPSC Prelims 2001
Physical Geography
Question No. 107Interactive Test Mode
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Q107. Consider the following statements made about sedimentary rocks: 1. Sedimentary rocks are formed at earth’s surface by the hydrological system 2. Formation of sedimentary rocks involves the weathering of pre-existing rocks 3. Sedimentary rocks contain fossils 4. Sedimentary rocks typically occur in layers Which of these statements are correct?

Consider the following statements made about sedimentary rocks:

  1. Sedimentary rocks are formed at earth’s surface by the hydrological system
  2. Formation of sedimentary rocks involves the weathering of pre-existing rocks
  3. Sedimentary rocks contain fossils
  4. Sedimentary rocks typically occur in layers Which of these statements are correct?
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 2001 • Geography

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

Concept & Option Breakdown

Standard Reference Verified

All four statements accurately describe sedimentary rocks:

  1. They are formed at or near the surface via water transport, deposition, and precipitation.
  2. Weathering and erosion of pre-existing igneous, metamorphic, or older sedimentary rocks provide the clastic materials.
  3. The relatively low temperature and pressure conditions during lithification preserve plant and animal remains (fossils).
  4. They are deposited in stratified beds or strata representing successive depositional events.
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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2001 (Q107)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Physical Geography
Official Answer KeyOption (D) — 1, 2, 3 and 4

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Frequently Asked Questions — UPSC Prelims 2001 Q107

What is the official answer for UPSC Prelims 2001 GS Paper I Question 107 (Geography)?

The official UPSC answer key for this 2001 Geography (Physical 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 2001 question belong to?

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

To solve Physical Geography questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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