The need for water conservation has increased due to, A. Increased population. B. Greater cultivation. C. Water pollution. D. All the above.

The need for water conservation has increased due to,
A. Increased population. B. Greater cultivation. C. Water pollution. D. All
the above.
by

1 Answer

Answer :

D. All
the above.
by

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A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

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A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

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