What challenges have Argentina, Peru, and Chile faced in their paths toward democracy and stronger economies? Include at least one example from each country in your response.

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 feldspar,quartz,mica and amphibole;

Answer b is the answet

Answerland;