Answer:
a
Explanation:
i just took it on usatestprep
Yes because he is only observing the height of the plants and he only changes one variable
An example of a 3rd class lever is a pair of tweezers!
I would say D idk or it would be B I hope this helps
(C.) The layers of the Earth are uniform in thickness
This is untrue. The mantle is far large than the crust and there are other large size differences.
