In an ocean, the parrotfish feed on marine plants, big fish feed on parrotfish, and sharks feed on OA. producers
B. primary consumers
C. secondary consumers
OD. tertiary consumers
O E. decomposers
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in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

if you're asking what comes out, it's steam.