The coolest layer of the earth is * D). inner core
C). mantel
A). outer core
B). crust

The crust is the coolest layer of the eart.

Explanation:

I hope this helps lol

creative diagnostics is a professional biological commercial company,specializing inassisting clients with t cell differentiationstudies.

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )