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Topic

Earth's crust composition

Asked 2 times in NDA over 1 years (2024–2025), peaking in 2025.
2
PYQs
1
Exams
2
Years active
2024–2025
Span
2025
Peak
2/2
Answers
📅 Full chronological timeline →

Key insights

  • Most tested in NDA — 2 of 2 PYQs
  • Most asked in 2025
  • Recurs across 2 years (2024–2025)

Across exams

NDA · 2

How the concept evolved

124
125
Rising — more than half its appearances (2 of 2) are since 2016.

Sample questions

You've seen the pattern — here are a few of the actual PYQs.
NDA2025

Which of the following is the correct ascending order of the given minerals in terms of their presence in the Earth's crust?

  1. Amphibolite
  2. Mica
  3. Pyroxene
  1. A 2, 3, 1
  2. B 1, 2, 3
  3. C 2, 1, 3 ✓
  4. D 1, 3, 2
✓ Correct answer: (C)
Geography › Geomorphology
NDA2024
Which one of the following is correct ?
  1. A Pyroxene is commonly found in meteorites ✓
  2. B Amphiboles form about 20% of the Earth's crust
  3. C Quartz is soluble in water
  4. D The word 'sedimentary' is derived from the Latin word kelimentum
✓ Correct answer: (A)
Geography › Geomorphology

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