Question:
The term biomagnification refers to
The term biomagnification refers to
Updated On: Aug 1, 2022
- increase in concentration of non-degradable poilutant through a food chain
- growth of organisms due to food consumption
- decrease in population size
- increase in population size
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The Correct Option is A
Solution and Explanation
The term biomagnification or biological amplification or concentration refer to the increase in concentration of non-biodegradable pollutant through successive trophic level of a food chain. The organisms of last tropic level possess high concentration of the non-biodegradable pollutant. One of the best example of biomagnification of mercury pollutant is Minimata lake of Japan. Where accumulation of pollutant in fishes through food chain was responsible for a large number of death due to Minimata disease.
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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