Question

1.What do you know about the Earth’s interior?
2.Briefly describe the ‘rock cycle’Draw a neatly labeled diagram.
3.Differentiatebetween:
*Sial &Sima
*Metamorphic& Igneous rocks
*Intrusive & Extrusive rocks
* Intrusive Igneous rocks & Extrusive Igneous rocks
4.How are metamorphic rocks formed?5.How is the earth a dynamic planet?

Answer 1

Answer:

Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface. Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies.