Feedback is when the body reacts in the same direction as a stimulus. negative positive

negative

Explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .