Question

Pls help me with the following :

Define the following

1. Eutrophication

2. Biomagnification

3. Acid rain

4. Ozone depletion

5. Green house effect

Answer 1

1)
The uncontrolled growth of algae and its effects lead to a condition in lakes and streams called eutrophication. Eutrophication is the increase of vegetation in a particular area of water, often caused by the runoff of nutrients.

2)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.

3)

rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.

4)

Ozone layer depletion, is simply the wearing out (reduction) of the amount of ozone in the stratosphere. Unlike pollution, which has many types and causes, Ozone depletion has been pinned down to one major human activity. ... Depletion begins when CFC's get into the stratosphere.

5)

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere