solutions

already made

water

air

most gold

minerals

solutions are substances that are made upof more than 1 substance such.

purity

some materials are pure whitch means they only contain1 substance.

value

the more pure it is the more its worth

adding

sunstance+substance---->solution

waste

oil

oil is valuble and is more valuble when pure

beacuse its pure people harvest it and now the world is low on oil resources.