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Answer:
C. creating new habitats for land animals that fill niches at lower altitudes and warmer temperatures.
Explanation:
because they will have change of environment
I'd have to say gas because it usually doesn't change at all
4 degrees
Explanation:
Relatively steeper than the shelf, the slope angles down to the ocean basin at an average of 4 degrees in some areas, the angle may be as much as 25 degrees.