Answer:
They went from atoms to oxygen molecule.
Explanation:
I'm not sure if this is the answer your teacher is looking for, but in simple terms you had 2 oxygen atoms. Together they make an oxygen molecule, which is the stuff we breathe.
Answer:
It is important to identify it because the two types of crust are made up of two different types of rock
Explanation:
Hope i helped you
Start by adding the numbers then divide
