Q. In the oceans, the environment is perpetually dark at
A) More than 100 m
B) More than 500 m
C) Less than 100 m
D) Less than 500 m
Explanation
Deep (>500 m) in the oceans the environment is perpetually dark and its inhabitants are not aware of the existence of celestial source of light
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.