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What are industrial effluents and their harmful effects?

Important Questions on Environmental Issues

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Biology>Ecology>Environmental Issues>Water Pollution and its Control
(Choose the correct answer)
The greatest problem for water conservation is to reduce the amount of:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
A river with an inflow of domestic sewage rich in organic waste may result in:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
One of the following is called as 'Terror of Bengal'.
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
An increase in the concentration of the toxicant at successive trophic levels is known as:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
A lake which is rich in organic waste may result in
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Algal blooms impart a distinct colour to water due to:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which one of the following impurities is easiest to remove from wastewater?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control

Domestic waste constitutes

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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Nuisance growth of aquatic plants and bloom-forming algae in natural waters is generally due to high concentrations of:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Pesticides enter the food chain at the _____ (producer/primary consumer) level.
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Thermal power plants give out a lot of _____ (hot/cold) waste water.
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
World’s most problematic aquatic weed is
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which of the following exhibits biomagnification?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The expanded form of DDT is
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The electric power plants cause _____(thermal/air/noise) pollution.
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Match the items given in Column I with those in Column II and select the correct option given below:
  Column I   Column II
A. Eutrophication (i) UV-B radiation
B. Sanitary landfills (ii) Deforestation
C. Snow blindness (iii) Nutrient enrichment
D. Jhum cultivation  (iv) Waste disposal 

The correct match is:

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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The green scum seen in the freshwater bodies is:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which of the following material takes the longest time for biodegradation?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control

Fill in the blank with the correct term from the bracket.

When DDT enters a food chain, it leads to _____. (biomagnification/eutrophication/bloom)

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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Cadmium pollution caused _____(itai-itai/minamata) disease in Japan.