Question

pls solve


Class 7
sst
CH - EARTH'S INTERIOR
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Answer 1

Answer:

3.(a) ans the uppermost part of the lithosphere is composed of rocks rich in silica and aluminum called Sial . Below this sial layer, the rocks are mainly rich in silica and magnesium and are called sima.

(b) ans the molten Rock material present inside the earth surface is called as magma . lava is fine red molten magma coming out from the interior of the earth on its surface.