Question

Define/Explain the following.
1. Air pollution
2. Greenhouse effect
3. Eutrophication
4. Potable water

Answer 1

1. Air pollution: The presence such amount of chemicals and undesirable material in air which has harmful effects on plants, animals, objects and the surroundings is called Air pollution.
2. Green house effect: The trapping of the solar radiation by the earth’s atmosphere due to the presence gases such as carbon dioxide, water vapour and methane is called Green house effect. These gases are called greenhouse gases.
3. Eutrophication: The addition of excessive amount of nutrients to water bodies which promotes excessive growth of plants in the water body is called Eutrophication.
4. Potable water: The water free from harmful chemical, which is transparent and odourless, safe for consumption by human beings is called Potable water.