Q. Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of :
A) oxygen
B) food
C) light
D) essential minerals
Explanation
[Solution] Algal blooms and their decomposition raise BOD and deplete dissolved oxygen, killing fish. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.