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The process of natural ageing of a lake is referred to as
The process of natural ageing of a lake is referred to as
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The correct option is C eutrophication
The natural aging of a lake by nutrient enrichment of its water is referred to as eutrophication. The water in a young lake, being very cold and clear, supports little life. The water from streams that drains into the lake, with time, introduces nutrients such as nitrogen and phosphorus. This leads to the growth of aquatic organisms and thereby increases the fertility of the lake. Plant and animal life flourish and result in the deposition of organic remains at the lake bottom. As silt and organic debris pile up, the lake becomes shallower and warmer. The warm-water organisms then replace those that thrive in a cold environment. Marsh plants begin to fill in the original lake basin. Eventually, the lake gets filled with large masses of floating plants (bog), finally converting into land.
Biomagnification refers to the increase in concentration of a chemical substance at successive trophic levels. It occurs when an organism accumulates a chemical that cannot be metabolised or excreted, and is thus passed on to the next higher trophic level.
Bioremediation involves the use of living organisms such as bacteria in cleaning up of contaminants, pollutants, and toxins from soil, water, and other environments.
Biofortification refers to the breeding of crops to enhance their nutritional value.
The natural aging of a lake by nutrient enrichment of its water is referred to as eutrophication. The water in a young lake, being very cold and clear, supports little life. The water from streams that drains into the lake, with time, introduces nutrients such as nitrogen and phosphorus. This leads to the growth of aquatic organisms and thereby increases the fertility of the lake. Plant and animal life flourish and result in the deposition of organic remains at the lake bottom. As silt and organic debris pile up, the lake becomes shallower and warmer. The warm-water organisms then replace those that thrive in a cold environment. Marsh plants begin to fill in the original lake basin. Eventually, the lake gets filled with large masses of floating plants (bog), finally converting into land.
Biomagnification refers to the increase in concentration of a chemical substance at successive trophic levels. It occurs when an organism accumulates a chemical that cannot be metabolised or excreted, and is thus passed on to the next higher trophic level.
Bioremediation involves the use of living organisms such as bacteria in cleaning up of contaminants, pollutants, and toxins from soil, water, and other environments.
Biofortification refers to the breeding of crops to enhance their nutritional value.
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