What caused the Kingdom of Life to change? Give 3 reasons minimum.​

1. They were like oh s.h.i.t we all d.y.in.g to much we need to stop being w.us.si.es so there bodies evolved to stop being d.ea.d beat p.ush o.vers .      

2. O.h Sh.it those fools are stealing our food we need a way to get our food first so they evolved.

3. Well we are dy.in.g quite a bit might as well have ways to boost up our population if we need to (like rabbits for example) They needed to be able to sc.re.w faster to amp up there population.

Explanation:

Theres ur answer Fo.ol

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.