When heated, solid potassium chlorate (KClO3) decom- poses to form solid passium chloride and oxygen gas.
If 20.8 g of potassium chlorate decomposes, how many
liters of oxygen gas will form at STP?

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

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.