Question

Answer the following questions briefly:
1. Name the two interface boundaries found between the crust, mantle and core.
2. Where is asthenosphere found? In which form does it exist?
3. Classify Igneous rocks on the basis of origin and chemical composition.
4. What is weathering?
5. Name any two countries which experience a monsoon climate in Asia.
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Answer 1

Explanation:

silicates

The rocks that make up Earth's mantle are mostly silicates—a wide variety of compounds that share a silicon and oxygen structure. Common silicates found in the mantle include olivine, garnet, and pyroxene. The other major type of rock found in the mantle is magnesium oxide.

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