Asimple machine produces 25 joules of output work for every 50 joules of input work . what is the efficiency of this machine ? snow work too plz

The efficiency of this machine is 50%

Explanation:

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.

ok whats the question if not i cannot you i need question and need a thing to answer