Question

the percentage by weight of metal available on the earth is maximum for a(O) b(Si) c(fe) D(Al)

Answer 1

option d that is aluminium which is mostly found in core

Answer 2

Hey dear,

● Answer -
(a) O

● Explaination -
- If we arrange elements by weight percentage in earth crust in decreasing order , top 10 elements would be
O > Si > Al > Fe > Ca > Na > K > Mg > Ti > H
- From this we can say that Oxygen is most abundant element in earth's crust i.e. about 47% by weight.

Hope this helps you.
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