I think the correct answer is
(A) changing in abiotic factors
Answer:he rushed
Explanation:he wants to finish first but handis in without double checking the work.
People first arrived in the Americas through Bering Strait. At the time the Strait was either partially frozen, so people could just walk, or very shallow, so people could travel with primitive boats.
Answer: The amphetamine speed is actually a “slang” name for the entire class of drugs known as amphetamines.
Explanation: