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About ______ of the earth’s crust is made up of eight elements. - Geography

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Question

About ______ of the earth’s crust is made up of eight elements.

Options

  • 89%

  • 98%

  • 80%

  • 90%

MCQ
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Solution

About 98% of the earth’s crust is made up of eight elements.

Explanation:

About 98% of the earth’s crust is made up of eight elements: oxygen, silicon, aluminium, iron, calcium, sodium, potassium, and magnesium. These elements combine to form nearly 2000 minerals in the crust. This high percentage shows the dominance of these eight elements in the earth’s crust composition.

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Chapter 5: Rocks - SOLVE AND SCORE [Page 45]

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Rachna Sapra Geography [English] Class 9 ICSE
Chapter 5 Rocks
SOLVE AND SCORE | Q A 1. | Page 45
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