A) decrease in species diversity
B) increase in species diversity
C) green house effect
D) no effect on species diversity
Correct Answer: A
Solution :
Organic matter (organic wastes) contains a number of pathogen, secondary pollutant pesticides etc. Biological oxygen demand becomes high, and therefore the dissolved oxygen reduced. Hence, planktons, Mollusca and fishes will be eliminated due to reduced dissolved oxygen and presence of secondary pollutant. Some species like annelid worm Tubifex and some insect larvae (Chironomus) tolerant pollution. Green-house effect is the warming effect found in green house by allowing solar radiations to pass in but preventing long wave heat radiations to pass out due to glass panels, water vapour and carbon dioxide. The high concentration of \[C{{O}_{3}}\] is due to air pollution.
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