Judge the following sentence: Even though water vapor has the greatest effect as a greenhouse gas, it is not normally discussed as one BECAUSE water vapor is completely natural and we have no control over it.
a. The assertion and reason are both correct.
b. The assertion is correct and the reason is incorrect.
c. The assertion is incorrect and the reason is correct.
d. Both the assertion and the reason are incorrect.
Question 2
Why is it warmer in the northern hemisphere in July than it is in December?
a. Earth is closer to the sun in the summer than the winter.
b. The suns rays shine more directly on the northern hemisphere in the summer than in the winter.
c. There are more greenhouse gases, such as carbon dioxide, in the atmosphere in the summer than in the winter.
d. The suns energy output is greater in the summer than it is in the winter.
e. The size and shape of Earths elliptical orbit changes from nearly circular in the summer to highly elliptical in the winter.
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