Question

Mark the correct statement
a) Our mouth, nose, alimentary canal are all inhabited by a large number of microbes.
b) Microbes are also found inside rocks
c) Microbes are never found inside earth crust

• A. a, b
• B. b, c
• C. a, c
• D. All

Answer 1

The correct option is A a, b

Microbes are cosmopolitan (i.e. they are found everywhere). They can survive in different temperature ranges. They are also found inside the human body, and also in the earth's crust inhabited by extremophiles.

So, the correct answer is 'a,b'