<span>The closer you are to the poles of the Earth, the fewer ecological niches for species to fill. </span>
Classification is subject to change because science is an evolving subject. New things are discovered every year and thus changing the way we understand the world around us.
Answer:
4. all of the above
Explanation:
all of these are correct so...all of the above
Answer:
At one point in Earth's history the mountains were under water
Explanation:
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