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Agriculture · Q473

Soil Science

Graduate and Post Graduate · Agriculture · question 473

Q473

Example of extrusive/volcanic rock is

A.
Basalt
B.
Rhyolite
C.
Andesite
D.
All of the above
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Ingenious rocks which are formed on the surface of the Earth by the crystallization of magma are called Extrusive rocks. These are fine-grained textures because their rapid cooling at or near the surface did not provide enough time for large crystals to grow.
Some examples of extrusive rocks are Basalt, Rhyolite and Andesite.