Which triangles are right triangles?
8 units 15 units

The answer to the question is c.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answerjoe ran 130 yards;

The peak above is part of the  sierra madre occidentals ,  a chain of volcanic mountains that runs through the middle of central america.