Question

Which one of the following is not an indicator of the degradation of a water body?
Increase transparency
Decreased species diversity
Increased sedimentation
Decreased oxygen concentration

Answer 1

Answer:

decreased oxygen concentration

Answer 2

Answer:

Increased transparency, because it shows clear water so it will not affect the native species, the rest three will definitely affect. Decreased species means loss of the native species, Increase sedimentation shows more pollution and Decreased Oxygen conc, means native spe ies could not get sufficient oxygen