Question

The living environment, the biosphere consists of __________ components.

(a) 2

(b) 4

(c) 1

(d) 3

This question was posed to me at a job interview.

This intriguing question comes from Environmental Engineering topic in chapter Other Major Topics in Civil Engineering of Basic Civil Engineering

Answer 1

The correct answer is (d) 3

To elaborate: The biosphere consists of 3 components – land (lithosphere), water (hydrosphere) and air (atmosphere).  They are all necessary for life to sustain on earth.