Answer: Roots of trees need oxygen.
Answer:
wave is a disturbance that travels through space and matter transferring energy from one place to another. When studying waves it's important to remember that they transfer energy, not matter. There are lots of waves all around us in everyday life.
Answer: B- They are both made of one or more cells
Explanation:
I took the test
I think its D but i'm doing this as well so don't like rely on this i might come back and tell you if it is or isn't
