Answer is A. I kid chemistry a while back but I am pretty certain it is A.
<span>When the surface layer was dug up, the permafrost was exposed. When the weather warmed, this exposed permafrost would have melted and become soggy, causing the ground underneath the tracks to shift.</span>
Answer:B
Explanation:i belive its b
we can't choose what color we are so they can't change their color I dont know
Storing nutrition and keeping warm, A good example would be walruses since they have no fur to keep warm
