I need help with this science pls

1)40n

2)25n

Explanation:

subtract the numbers if its on the opposite sides and add if its on same side

thank u hope it helps

the link still does not work even when adding it to the url bar

explanation:

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.