<span>Where is most of the high-level waste from nuclear reactors stored?
</span><span>the ocean</span>
Liquid water turning into vapor.
Alkanes do not have a double bond, thus they are saturated. This makes them the simplest form of hydrocarbon, containing only hydrogen and carbon atoms. They are not very reactive as they don't have a double bond which can open up and join on to other molecules.
element is made up of only one type of atoms.
it is pure form of matter
example hydrogen, oxygen, carbon etc