Answer:
B
Explanation:Im on brainpop too and it says the answer is b
Jet streams are fast moving air currents much like how a river is a fast moving water current so the answer is jet streams.
B. Pine trees, this is the answer that was right after I took the test XD
Addiction is most likely the answer.
Answer:
as the field of science, biology help as to understand the living world and the ways it's many species
