Question

MCQ a) the main elements of the continued crust are: a) silicon and aluminium b) silicon and magnesium c) nickel and iron d) mixed metals and silicates please help me very urgent
ok............... ​

Answer 1

Answer:

ok i will tell

Explanation:

Answer 2

Answer:

so Parnavsaini

a) silicon and aluminium

This is your right answer.

Silicon(27.7%) is most common and Aluminum cover (8%)of earth mass

I hope it will helpful(^～^)