Which type of climate is most beneficial to soil formation? A. Rain forest

B. Polar

C. Desert

D. Temperate

a time line cause it goes from 685 to 978

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.