Question

B. Explain the following terms:
a) Crust
b) Mantle
c) Core
d) Sial
e) Sima
f) Nife
g) Magma h) Lava
i) Fossil fuel j) Minerals
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Answer 1

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CRUST

crust is the outermost layer of the earth.

it is the layer on which the organisms live their life on.

MENTAL

it is the second layer of the earth.

all here water and minerals are trapped in the rock cavities. .

CORE

It is the innermost layer of earth.

it is the hottest part of earth consist of molten magma.

Answer 2

In geology,Crust is the outermost layer of any planet.The crust of earth is composed of a great varity of igneous,metamorphic,and sedimentary rocks.