Question

3. Answer the following
(A) What are the two parts of the crust?
What is the basis of classification?
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Answer 1

Explanation:

Earth's crust is divided into two types: oceanic crust and continental crust. The transition zone between these two types of crust is sometimes called the Conrad discontinuity. Silicates (mostly compounds made of silicon and oxygen) are the most abundant rocks and minerals in both oceanic and continental crust.

Answer 2

1)Earth's crust is divided into two types: oceanic crust and continental crust. The transition zone between these two types of crust is sometimes called the Conrad discontinuity. Silicates (mostly compounds made of silicon and oxygen) are the most abundant rocks and minerals in both oceanic and continental crust.

2)Basis of Classification– The characteristics based on which the living organisms can be classified. Characteristic: A distinguishing quality, trait or feature of an individual seen in all members of the same species.