Sports drinks are beverages designed to replenish water, salts, sugars, and other nutrients that are lost during strenuous exercise, which facilitates proper re-hydration of the body. A particular sports drink contains 239 parts per million (ppm) sodium by mass. How many milligrams of sodium would be in a 1.0 quart bottle of this beverage

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

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.