Distinguish between the following pairs: 1) Extrusive rocks and intrusive rocks
Answers
Answered by
0
The rocks which are formed inside of the volcano by magma are called intrusive rocks. The rocks which are formed outside of the volcano by lava are called extrusive rocks
Answered by
0
Answer:
Extrusive or volcanic rocks:
These rocks are formed when magma breaks through the crust and reaches the surface of the earth (where it is called lava). It cools rapidly and solidifies to form rocks. The common rocks formed in this manner are basalt and obsidian.
Instrusive or plutonic rocks:
These rocks are formed when magma fails to break through the crust and cools slowly under the crust forming rocks. Because of slow cooling it solidifies into rocks with large grains of crystals. The common eg of rocks formed in this manner are granite and dolerite.
I Hope this will help uh ! :)
Explanation:
Similar questions