Inside Our Earth — Social Studies STD 7 — Question
CBSE BoardEnglish MediumSTD 7Social StudiesInside Our Earth3 Marks
Question
What do you know about extrusive and intrusive rocks formed?
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Answer
When the molten lava comes on earth's surface; it rapidly cools down and become solid. Rocks formed in such a way on the crust are called Extrusive igneous rock. Sometimes molten magma cools down deep inside the earth crust, solid rocks so formed are called Intrusive igneous rocks.
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