The Carbon Dioxide in the atmosphere is only very small
relative to other gases. Typically, it only consists about 0.038 percent or
0.04 percent of the gases in the atmosphere.
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Even though it is only small, CO2 is very important since it is one of the
greenhouse gases which ensures that the Earth stays warm.</span>
The answer is that if polygon ABCD rotates 90 counterclockwise
to create a'b'c'd', then the coordinates of d will be at the location (-2, 2)
and if the polygon ABCD rotates 180 clockwise to create a'b'c'd'
the coordinate of A will become (3,-1).
