Locate and label these major French cities , Pair , Marcile , Lyon , Toulouse , and Nice

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 volcanic eruptionsseismic waves from earthquakes;

Answerweathering;

The answer for your problem would be a. 7