B-valine,histidine,threonine,phenylalanine
If there where a decrease in the number of decomposers there would be a increase in the number of producers and consumers.
The best and most correct answer among the choices provided by the question is <span>b. oil</span> <span>.
</span>A thick, black liquid formed from the buried remains of microscopic marine organisms is oil .
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Hope my answer would be a great help for you. </span>
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Outputs : Oxygen
Inputs: Sunlight;Carbon dioxide;Water
D.exotic animal trade contributes to reemergence of diseases more than the appearance of new disease<span />
