(C) When domestic sewage rich in organic waste enters a lake,it promotes the growth of microorganisms that decompose the organic matter. This process

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Death of fish due to lack of oxygen

(C) When domestic sewage rich in organic waste enters a lake,it promotes the growth of microorganisms that decompose the organic matter. This process consumes a large amount of dissolved oxygen $(DO)$ from the water. As the level of $DO$ drops significantly,aquatic animals like fish cannot perform respiration through their gills,leading to their death.

Class 12 Biology Environmental Issues Pollution

Medium

$A$ lake with an inflow of domestic sewage rich in organic waste may result in:

AIIMS 2004 All AIIMS

A
Drying of the lake very soon due to algal bloom
B
An increased production of fish due to lot of nutrient
C
Death of fish due to lack of oxygen
D
Increased population of aquatic web organism

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$A$ lake with an inflow of domestic sewage rich in organic waste may result in:

Similar Questions

The pollutants which are already present in nature,but are released in substantial amounts by man are known as

What is polluted by chemically synthesized pesticides?

According to the Central Pollution Control Board $(CPCB)$,particulate matter of what size is responsible for causing the greatest harm to human health?

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The addition of elements like nitrogen and phosphorus to a lake through streams leads to:

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