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Biomagnification refers to:

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Important Questions on Environmental Issues

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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The minimum proportion of impurities that made the drinking water unfit for human consumption is____________
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which ONE of the following can NOT cause eutrophication of lakes?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Eutrophication is the natural ageing of lake by _______
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of
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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
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The maximum concentration of harmful chemicals is expected to be found in organisms
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which, among grass, goat, tiger and vulture, in a food chain, will have the maximum concentration of harmful chemicals in its body due to contamination of pesticides in the soil?
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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
The biomagnification of which pollutant causes a decline in the bird population?
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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:
MEDIUM
Biology>Ecology>Environmental Issues>Water Pollution and its Control
Rachel Carson's famous book ''Silent Spring'' is related to:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
CO2 acts as a greenhouse gas because:
HARD
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 landfill ii. Deforestation
c. Snow blindness iii. Nutrient
d. Jhum cultivation iv. Waste disposal
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Which of the following pairs of gases is mainly responsible for green house effect?
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
Chlorofluorocarbons (CFCs) are believed to be associated with cancers because:
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
In an area where DDT has been used extensively, the population of birds declined significantly because -
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Biology>Ecology>Environmental Issues>Water Pollution and its Control
The highest DDT concentration in aquatic food chain shall occur in
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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: