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According to some scientists, the Earth's average surface temperature is rising as a result of thr greenhouse effect. An increase in the atmospheric

concentration of which of the following gases is considered to be primarily responsible?
a) nitrogen
b) oxygen
c) sulfur dioxide
d) carbon dioxide


The answer is carbon dioxide because carbon d. is the major suspect for greenhouse effect there are other greenhouse gases that can affect the greenhouse effect but carbon dioxide is the major ,letter a is wrong b'coz we know that the major gas in our atmosphere is nitrogen letter b is wrong because oxygen is not cause by greenhouse effect and sulfur dioxide ,maybe b'coz sulphur dioxide and nitrogen dioxide is the suspect for acid rain :)
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