Civil Services UPSC CAPF (Assistant Commandants) Test Series 2025 General Knowledge Indian Geography Indian Economic and Human Geography
Consider the following minerals found in the Earth's crust:
1. Oxygen
2. Silicon
3. Aluminum
4. Iron
5. Calcium
Which of the following is the correct descending order of their abundance in the Earth's crust?
1
Oxygen > Silicon > Aluminum > Iron > Calcium
2
Oxygen > Silicon > Iron > Aluminum > Calcium
3
Oxygen > Iron > Silicon > Aluminum > Calcium
4
Silicon > Oxygen > Aluminum > Iron > Calcium