Answer:
a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.
Explanation:
<em><u>Radhe</u></em><em><u> </u></em><em><u>Radhe</u></em><em><u>❤</u></em>
I’m not sure about the rest but 4 is families
The 2 types of earths crust are the oceanic crust and the continental crust.