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प्रश्न
Write short note on Green House Effect.
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उत्तर
- Global warming is caused by the increase of greenhouse gases such as carbon dioxide, methane, water vapour and Chloro Fluoro Carbons (CFC), carbon monoxide, photochemical oxidants and hydrocarbons.
- They are responsible for the heat retention ability of the atmosphere.
- Global warming causes climate change, ozone layer depletion, rise in sea level and drowning of coastal inhabited land, melting of ice, etc.,
- They are posing an even greater threat to human existence and so, man must start thinking of protecting the environment from pollution.
संबंधित प्रश्न
List all the wastes that you generate, at home, school or during your Trips to other places, could you very easily reduce? Which would be Difficult or rather impossible to reduce?
Match the items given in columns A and B:
| Column ‘A’ | Column ‘B’ | ||
| (a) | Catalytic converter | (1) | Particulate matter |
| (b) | Electrostatic precipitator | (2) | Carbon monoxide and nitrogen oxides |
| (c) | Earmuffs | (3) | High noise level |
| (d) | Landfills | (4) | Solid wastes |
What is joint forest management?
Assertion(A): Urbanisation is one of the environmental issues.
Reason(R): As the town expands, it mounts more pressure on transport system, water supplies leading to air pollution, water pollution, etc.
What is forest management?
Soda and detergents are the source of organic pollutants life.
Which among the following chronic lung disease commonly known as 'black ling' disease, leads to reduced life expectancy in coal- minerals ?
Pollutants resulting from human activities are mainly discharged in ______.
Pollutants are classified into ______.
Pollutant brings about
