Question

In an inconvenient truth, a graph of atmospheric carbon dioxide shows a regular decrese in the amount of the gas once a year. what time of year does this happen?

a) winter and the 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

d) summer and fall in the Northern Hemisphere hope this helps plz friend me ;) :);] :}