While studying the pfd of a process, you observed that a reactive system is immediately followed by a direct quench cooler where water is sprayed to decrease the temperature of the product rapidly. reactor outlet temperature is very high so heat could have been recovered. cite at least one reason you think the quench was provided without heat recovery.

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confused             hewdejdnjnjsnd

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.

it has both hydrogen and oxygen