The average distance from the center of the sun to the center of the earth(about 156 million km) i need to find the term
it’s 16 letters

a_t__n__i_a__n_t

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.

Answer b is the answet

The answer is a for sure