Question

Match the following.
(i) Core
(a) Earth's surface
(ii) Minerals (b) Used for roads and buildings
(iii) Rocks
(c) Made of silicon and alumina
(iv) Clay
(d) Has definite chemical composition
(v) Sial
(e) Innermost layer/
Changes into slate
(g) Process of transformation of the rock​

Answer 1

Answer:

core innermost layer

minerals

rocks

Answer 2

Answer: 1) Core e)Innermost layer

Explanation- Core is the innermost layer of the earth.

2) Minerals d) Has definite

chemical composition

Explanation- Minerals has definite chemical composition.

3) Rocks a) Earth's surface

Explanation- The earth's surface which is the crust is made up of rocks and minerals.

4) Clay f) Changes into

slate

Explanation- When heat and pressure is is provided on clay it changes into slate, same happens when heat and pressure is provided to limestone it changes to marble.

5) Sial c) Made of silicon

and alumina

Explanation- Sial is a short form for silicon and alumina,( si- silica + al- alumina ). Same is with silicon and magnesium,( si- silicon + ma- magnesium )= Sima.

There are five questions but seven options, to confuse us. So be careful.

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