A decomposer is a hetrotroph i cant explain it though because im horrible at explaining things
Explanation:
As shown in the illustration the highest percentage of air is composed of nitrogen gas at 78%. The second highest percentage is oxygen at 21%. The other trace gases, including carbon dioxide, make up about 1% of the gas composition.
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For more on air composition check out;
brainly.com/question/10343608
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The answer will be increase slightly and then decrease. Hope you get it!
option c is the right answer please mark me as brainlist