Question

harmful effect of greenhouse gas

Answer 1

Much of these harmful gases are produced either naturally or by various human activities; which we should reduce. Brief description and effects of six important greenhouse gases are given below:

a. Carbon dioxide (CO2) – A naturally occurring gas produced by living organisms and fermentation. It is a normal component of the breath we exhale; it is hazardous in concentrated volumes. Large quantity of carbon dioxide is produced by the combustion of carbonaceous fuels. Carbon dioxide emissions from fuel burning, responsible for about 87 percent of global warming, have increased by about 27 percent since the industrial revolution.

pds_strategy_biotechb. Nitrogen oxides (NOx) – Nitrogen oxides are naturally occurring from microbial action in soil. NOx is also produced by fuel burning. Scientists say its production is increased by the use of nitrogen based fertilizers in agriculture, as well as by the use of catalytic converters in automobiles.

c. Methane (CH4) – Methane is a naturally occurring, in-flammable gas. Methane is produced by geological coal formations and by the decomposition of organic matters. Leading man-related sources of methane are landfills; livestock digestive processes and waste, especially ruminants (cud-chewing animals); and wetland rice cultivation.

Answer 2

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Greenhouse Effect➫ The warming effect of the sun on greenhouse gases like Carbon dioxide that act to trap this heat in our atmosphere.

Ex:- Global Warming

♦ It is one of the main factors determining the temperature of a planet.

♦ It act like a blanket by absorbing IR radiation & preventing it from escaping into outer space.

➧ Types 0f Greenhouse Gases are:-
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❱ 0zone
❱ Methane
❱ Nitrous oxide
❱ Carbon dioxide
❱ Chlorofluorocarbons
❱ Hydrofluorocarbons

➧ Causes 0f Greenhouse Effect are:-
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❱ Burning of Fossils Fuel like - Coal.

❱ Trapping of energy in the lower atmosphere.

❱ The chemical composition of the atmosphere.

❱ The total energy influx from the sun which depends on the earth's distance from the sun & on solar activity.


➧ Importance 0f Greenhouse Effect are:-
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❱ It maintain the water level of the earth's surface.

It keeps the Earth warm enough to sustain life.

❱ It prevents the melting of ice & restricts the polar caps to the polar regions only.


➧ The ways to reduce Greenhouse Effect are:-
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❱ Reduce, Reuse & Recycle.

❱ Use Less Heat & Air Conditioning.

❱ Replace Your Light Bulbs.

❱ Drive Less & Drive Smart.

❱ Buy Energy-Efficient Products.

❱ Use Less Hot Water.

❱ Use the "Off" Switch.

❱ Plant a Tree.

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