A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds. All compounds are molecules.
1. Moist air
2. The less dense air, the less oxygen (at least that's what my teacher says)
U got this so open your book/notes and look for the answer stop being lazy
Answer:
b
Explanation:
biologists do both very regularly example you grow bacteria in a lab but you observe amimals in there habitats
I think it will be C,D,B, and A i think that is in order.