I cannot fully remember but the charge of a compound always has to be the same. However, I believe that the sign of the Y2 means that it is positive 2.
so in my opinion it is in between b and c. use your best judgment.
Which of those depend on mayfly nymphs. In other terms which animal eats mayfly nymphs?
I would say frogs
Answer:
at the top of the swing
at the top of the swing
at the bottom of the swing
at the bottom of the swing
Explanation:
