A mixture of helium and hydrogen gases is maintained in a 8.88 L flask at a pressure of 3.58 atm and a temperature of 53 °C. If the gas mixture contains 2.03 grams of helium, the number of grams of hydrogen in the mixture is g.

the answer is c i believe

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.