Question

1) in An Inconvenient Truth, a graph of atmosphere carbon dioxide shows a regular decrease in the amount of the gas once a year. What time of year does this happen?

A) winter & spring in the northern hemisphere
B) spring and summer in the northern hemisphere
C) fall and winter in the northern hemisphere
D) Summer and fall in the northern hemisphere

Answer 1

The answer to that question is C. Fall and winter in the Northern Hemisphere

Answer 2

all and winter in the northern hemisphere is right answer because in this time human activities become less.
hope it helps.