Answer: water
Explanation: Water is everywhere and required to survive, so water would be the most abundant compound.
Answer:
When the Cheetah starts running, it generates its energy initially by aerobic respiration, where glucose is oxidised in the presence of oxygen, resulting in generation of ATP
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Most of legumes have symbiotic, nitrogen-fixing<span> bacteria, that live in structures called "</span>root nodules"<span>. </span>