Starch and atp can both be described as molecules that store energy. compare and contrast starch and atp in terms of storing energy and supplying energy for a cell’s work.

this answer is correct, why is it reported? ?

the answer to your question is slate

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.