List three dominant groups of animal and plant life (think big group like amphibians instead of frogs, or fish instead salmon) during each the following four geologic eras or eons. precambrian eon paleozoic era mesozoic era cenozoic era

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.

Are there any words that will you

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