Question

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

Answer:

1) Earth's crust is divided into two types: oceanic crust and continental crust.

2) Basis of Classification. Species is the basic unit of classification.

Explanation:

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Answer 2

Earth's crust is the outermost layer.It can be classified into Continental crust and Oceanic crust on the basis of chemical composition.The continental crust is made up of silica and aluminum while,oceanic crust is made up of silica and magnesium.

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