Short Answer TypeExcessive nutrients in a fresh water body cause fish mortality. Give two reasons
The presence of large amounts of nutrients in the water bodies lead to excessive growth of algae and cause Algal bloom. The algal blood leads to deterioration of the quality of water, reduces dissolved oxygen and the hence leads to fish mortality.
Suggest the breeding method most suitable for animals that are below average in milk productivity.
Mention the kind of biodiversity of more than a thousand varieties of mangoes in India represent. How is it possible?
List the events that reduce the Biological Oxygen Demand (BOD) of a primary effluent during sewage treatment.
Name the causative organism of the disease amoebiasis. List three symptoms of the disease.
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