A scientist observed a sudden increase in the number of algae in a lake over
a few days. The reason behind it could be that
(A) Water cycle in the area got unbalanced
(B) Electronic wastes were being dumped in a nearby area
(C) A factory with heavy smoke discharge has been established nearby
(D) Heavy amount of chemical fertilisers were being used in a nearby field
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Answers
Answered by
3
Answer:
D will be the correct option.
Answered by
3
Answer:
I think option number d is
Explanation:
Some algal blooms are the result of an excess of nutrients (particularly phosphorus and nitrogen) into waters and higher concentrations of these nutrients in water cause increased growth of algae and green plants. ... With more food available, the bacteria increase in number and use up the dissolved oxygen in the water.
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