Answer:
7. B. the variety of species on Earth
8. D. invasive (exotic)
Explanation:
Hope this helps my friend!!
A. Deposition, erosion is the sediments actually moving and weathering is the wearing down and breaking of the sediment.
Answer:
Yes
Explanation:
I'm not sure what rules you're talking about.
I know that atoms have mass.
Air definitely has atoms in it. If you're talking about the atmosphere, mostly nitrogen.
Since atoms have mass, and the air has atoms, the air has mass.