The process of forming the iron - rich core, the low density crust which is also rich in silicon, oxygen, aluminum, and the intermediate density mantle rich in silicon, oxygen, and magnesium is called the differentiation. Thus, the answer to this item is letter A.
<span>The earth’s revolution is the movement of earth around the sun. the term rotation describes the earth’s movement on its own axis.
Its b.revolution,rotation.</span>
Answer:
heres your answer
Explanation:
Seismic waves generated
Waves reaches to epicentre
Dislocation in Earth's crust
Tremors felt on surface
Buildings collapse
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