Question

Q3. Answer the following
(A) What are the two parts of the crust?
What is the basis of classification?​

Answer 1

Answer:

sima and sial

Explanation:

sima( silicon and magnesium) - lower layer

sial ( silicon and aluminium) - upper layer

on the basis of continental and oceanic

Answer 2

Answer:

A. sial and sima

Explanation:

........

sial consists of silicates nd aluminium nd other lighter metals

sima consists of silicates of magnesium, iron nd other denser metals..