Question

what is ......

a)EUTROPHICATION....

b)BIOMAGNIFICATION...

Answer 1

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ANSWER:

EUTROPHICATION:

Eutrophication (from Greek eutrophos, "well-nourished"),or hypertrophication, is when a body of water becomes overly enriched with minerals and nutrients which induce excessive growth of plants and algae.This process may result in oxygen depletion of the water body. One example is the "bloom" or great increase of phytoplankton in a water body as a response to increased levels of nutrients. Eutrophication is almost always induced by the discharge of nitrate or phosphate-containing detergents, fertilizers, or sewage into an aquatic system.

BIOMAGNIFICATION:

Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of tolerant organisms at successively higher levels in a food chain. 

Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which in turn are eaten perhaps by fish, which then may be eaten by bigger fish, large birds, animals, or humans. The substances become increasingly concentrated in tissues or internal organs as they move up the chain. Bioaccumulants are substances that increase in concentration in living organisms as they take in contaminated air, water, or food because the substances are very slowly metabolized or excreted.

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Answer 2

Eutrophicatoin...

Excessive richness of nutrients in a lake or other body of water. This process may result in oxygen depletion of water body..

Biomagnification...

Increasing concentration of a substance such as toxic chemicals in the tissues of organisms at higher level in food chain..

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