Arrange the stages of biomagnification of DDT.
(A) Fish eating birds (PPT 25 PPm)
(B) Small fish (DDT 0.5 PPm)
(C) Zooplankton (DDT 0.04 PPm)
(D) Water (DDT 0.003 PPm)
(E) Large fish (DDT 2 PPm)
Choose the correct answer from the options given below:
Arrange the stages of biomagnification of DDT.
(A) Fish eating birds (PPT 25 PPm)
(B) Small fish (DDT 0.5 PPm)
(C) Zooplankton (DDT 0.04 PPm)
(D) Water (DDT 0.003 PPm)
(E) Large fish (DDT 2 PPm)
Choose the correct answer from the options given below:
\((B)→(C)→(E)→(A)→(D)\)
\((D)→(C)→(B)→(E)→(A)\)
\((D)→(B)→(C)→(E)→(A)\)
\((E)→(D)→(B)→(C)→(A)\)
The Correct Option is B
Solution and Explanation
The correct order of stages of biomagnification of DDT is as follows:
(D) Water (DDT 0.003 PPm) - Lowest concentration at the base of the food chain.
(C) Zooplankton (DDT 0.04 PPm) - Higher concentration compared to water.
(B) Small fish (DDT 0.5 PPm) - Further biomagnification as small fish consume zooplankton.
(E) Large fish (DDT 2 PPm) - Higher concentration as large fish consume smaller fish.
(A) Fish-eating birds (PPT 25 PPm) - Highest concentration as birds consume large fish.
So, the correct option is (B): \((D)→(C)→(B)→(E)→(A)\)
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List - I
List - II
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Top CUET Environmental Issues Questions
Given below are two statements :
Statement I: Ladybird and Dragonflies are useful to get rid of aphids and mosquitoes. Trichoderma fungus are effective bio control agents of several plant pathogens.Statement II: The biological control of plant diseases and pest can control increasing use of insecticides and pesticides, thus saving our environment from being getting polluted.In the light of the above statements, choose the most appropriate answer from the options given below :
- Human activities like over cultivation, unrestricted grazing, deforestation and poor irrigation practices result into
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Select the statements that are CORRECT regarding patterns of biodiversity.
(A) Species diversity increases as we move away from the equator towards the poles(B) The tropical Amazon rain forest in South America has the greatest biodiversity on earth.(C) There is more solar energy available in the temperate region than tropics.(D) Tropical environments are less seasonal relatively more constant and predictableWhich of the following hormone is not produced by placenta ?
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Concepts Used:
Water Pollution
- Water pollution means the contamination of water bodies such as seas, lakes, rivers, aquifers, oceans, and groundwater caused majorly due to inhuman activities with industrial and agricultural effluents. It is the change of chemical, biological, or physical properties of water that will result in a destructive consequence for living organisms.
- Portable water is considered safe for human and animal consumption as well as used for drinking, cooking, crop irrigation, washing, etc,. Nowadays, chemicals, bacteria, and other pollutants are also influencing this. It adversely acts on all the living forms, directly or indirectly depending upon the source. The effects of water pollution can be felt for years to come.
Sources of Water Pollution:
The following are the major sources of Water Pollution:
- Domestic Waste
- Urbanization
- Deforestation
- Industrial effluents
- Social and Religious Practices
- Insecticides and pesticides
- Detergents and Fertilizers