Hindi, asked by anuragjha262, 1 year ago

A good speech on global warming and greenhouse effect plz very imp for asl

Answers

Answered by Ishu307
1
Greenhouse effect is a process caused by the green house gases during which thermal radiations of the earth’s surface gets absorbed which again re-radiated to all directions instead of escaping back to the space. Re-radiation of the heat increases temperature in the lower atmosphere of the earth which elevates the average surface temperature. Green house gases make a sheet like blanket in the atmosphere which allows heat to come inside however does not allow them to go outside and increase earth’s temperature. There are many gases come under the category of green house gases but four major gases are named as water vapour, methane, carbon dioxide and ozone.

Some other gases like clouds which are considered as non-gas contributor to the greenhouse effect, but truly they absorb and emit infrared radiations and thus involves in green house effect. There are many reasons of increasing green house gases in the atmosphere however one main reason is human activities such as burning fossil fuels in various ways, clearing of forests, etc causes global warming. Incoming radiations from sun become visible lights having temperature of 6,000 K which gets absorbed by the earth’s surface and disturbs the whole ecological balance.

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Answered by Anonymous
0
Answer

The word green house comes from the house which was used early in cold countries for seed germination as in cold countries the amount of sunlight is not enough for seed germination.
Green house effect is the entering of solar radiation to pass in but prevent long wave heat radiation to pass out due to presence of solar gases. These gases allow the solar radiation to pass through but reflect back the long wave radiations back to earth , are called green house effect.
Carbon dioxide , chroro - floro carbon and nitrogen oxide are green house gases which are mostly produced by industries ,factories and by automobile's exhaust.
Due to green house effect the temperature of the surface of earth , on its immediate atmosphere rises and this phenomenon is called global warming.
Global warming leads to melting of glaciers , occurence of diseases , adverse effect on plant yields.
So we need to reduce the use of automobiles and we should stop deforestation and start afforestation.

Save green , Go green

╚»★«╝[ by aryan ]╚»★«╝

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