Solved UPSC CDS/OTA Question
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Q · Mineralsmedium · 45s
Which mineral group makes up most of the Earth's crust?
TopicMinerals
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Silicate minerals comprise approximately 90% of Earth's crust by volume. These minerals contain silicon and oxygen as their basic building blocks, forming various structures including quartz, feldspars, micas, and pyroxenes. The abundance of silicate minerals reflects the high concentration of silicon and oxygen in Earth's crust, making them fundamental to understanding geological processes and rock formation.
Final Answer: Option A - Silicates