A sample of cold water was mixed with a sample of hot water inside a calorimeter, and the final temperature of the cold water was 40 °C. Which statement is true about the hot water in the calorimeter?
It absorbed 40 joules.
It absorbed 80 joules.
its final temperature was 80 °C.
Its final temperature was 40 °C

an honest friend. a friend who cares about me, and wont use me. a friend that i can trust. not someone who is fake

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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.