Answers

2015-12-20T21:42:07+05:30
causes of global warming are:-
1. the factories release gases like CO2 which is a green house gas and cause global warming.
2.vehicles release some gases which cause global warming.
3. burning of fossil fuels like coal. oil.
4. cutting or burning trees, or forest fire.
5. during the break down of food, CO2 is released.
its effects are that it increase the temperature of the earth leading to the melting of glaciers which can rise the sea level, which will result into flooding of coastal and low lying areas.
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2015-12-20T22:00:07+05:30
causes of global warming are:-
1.industries release a lot of harmful gases
2.the use of chloro fluoro carbons lead to ozone layer depletion
3. burning of fossil fuels like coal. oil.
4. cutting or burning trees, or forest fire.
5. vehicles release harmful gases 
its effects are
increase the temperature of the earth
melting of glaciers 
rise the sea level, which will result into flooding of coastal and low lying areas.
desertification
many plans and animals die
water scarcity
gives rise to many diseases
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