1.

What is the correct order of the abundance of non-metal in the earth’s crust 1. Oxygen > Silicon > Sodium > Iron 2. Oxygen > Silicon > Phosphorous > Sulphur 3. Sulphur > Phosphorous > Silicon > Oxygen 4. Iron > Aluminium > Silver > Gold

Answer»

Explanation:

The correct sequence is 3. Sulphur > Phosphorus > SILICON > Oxygen.



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