How many molecules of water are produced in the reaction between 18 55 g of sulfuric acid and an excess of sodium hydroxide?

clouds form

solid ice forms on leaves.

water droplets form on grass.

if you mean hydrogen and oxygen then water is the product

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.