Kilo-1,000
deci-1/10
centi-1/100
milli-1/1000
Because the sun provides not only provides for living things, it provides for some indirectly because the sun is everywhere. That being said, a good example would be the grass. And what eats the grass? Animals and critters of course. Sun also makes trees grow which gives us humans oxygen. The sun helps us in many ways whether you know it or not.
The pH of water is 7 because it contains an equal amount of H+ and OH-ions.
