domingo, 5 de septiembre de 2010

cuesteonario

1.-what is the most comman greenhouse has emmited from human activities?

the most gases is carbon dioxide


2.-Do you think greenhouse gases in the atmosphere are always bad for humans and the enviroment?

No because it existed in contrast to helps us to have an aceptable temperature for the develop of life


3.- In which or the following ways do people increase the contration of the greenhouse gases in the atmosphere and, why?

a)cutting down trees

b) driving gasoline-powered-automoviles

c)burning coat to creest electricity

d) all of above

the option d) because this merat efect planet earth

4.- why greenhouse gases couse global warming and explaint it?

a) absorbing and readiting heat from infrared rays

b) cousing the atmosphere to catch fire

c) absorbing the water in the atmosphere

d) reflecting solar rays

option a) because it omits but the atmosphere prevents heat into space and everiting reatings to the planet

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