Use examples to explain how the atmosphere interacts with two other of earth's spheres. explain the interaction for each using complete sentences.

Plants in the biosphere consume carbon dioxide from the atmosphere and emit oxygen back into the atmosphere as a result of photosynthesis. Animals consume oxygen from the atmosphere and emit carbon dioxide back into the atmosphere as a result of cellular respiration.

Explanation:

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f is prop to m1xm2 double m1 double force

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form