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Environmental Issues
Question
A river with an inflow of domestic sewage-rich in organic waste may result in
-
increased population of aquatic food web organism
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an increased production of fish due to biodegradable nutrients
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death of fish due to lack of oxygen
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drying of the river very soon due to algal bloom
Solution
C.
death of fish due to lack of oxygen
A river with sewage increases the organic waste and decreases the dissolved oxygen.
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Some More Questions From Environmental Issues Chapter
What is the term for the inflammation of cornea due to high absorption of UV-B radiation :
Smog is a mixture of :
WHO’s recommendations about the industrial noise limit is of :
Which of the atmospheric layer contains ozone layer ?
The amount of dissolved oxygen required by the microorganisms to degrade the organic wastes present in water is called ?
The cause of acid rain is :
Which one of the following causes ozone depletion ?
What disease is caused due to consumption of fishes captured from water contaminated with mercury ?
Which one of the following is not a green-house gas ?
Which gas contributes the maximum in global warming ?
Mock Test Series
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