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Definition of BOD

The process i...

Question

The process in which nutrient enriched water bodies support a dense plant population,which kills animal life by depriving it of oxygen is called as:

A

Warm,dry and sunny climate

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B

Saponification

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C

Eutrophication

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D

Frozen time

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Solution

The correct option is C
Eutrophication

The process in which nutrient enriched water bodies support a dense plant population,which kills animal life by depriving it of oxygen is called as eutrophication.

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Q. This process in which nutrient enriched water bodies support a dense plant population, which kills animal life by depriving it of oxygen and results in subsequent loss of biodiversity is known as ________.

Q. Which of the following statements regarding eutrophication are correct ?
(i) Eutrophication is the natural ageing of a lake by nutrient enrichment of its water.
(ii) Pollutants from human activities like effluents from the industries and homes can radically accelerate the aging process of a lake. This phenomenon is called as cultural or accelerated eutrophication.
(iii) The plant nutrients responsible for eutrophication are nitrates and phosphates.
(iv) These phosphates and nitrates accelerate the growth of algae, which utilise oxygen and may deoxygenate the water to kill the fish and other aquatic animals.

Q. Which of the following statement(s) is/(are) the incorrect reason for eutrophication?
(A) excess usage of fertilisers

(B) excess usage of detergents

(C) dense plant population in water bodies

(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the option given below:

Q. The scientific process by which crop plants are enriched with certain desirable nutrients is called as

Q. The scientific process by which crop plants are enriched with certain desirable nutrient is called

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