The group of evolutionary theories that assumes all societies follow the same evolutionary path are referred to as theories

The answer is: Uniliniar theories

Uniliniar theories believed that human societies all develop starting from hunter gatherer societies, move up to agricultural society, and eventually ended up as industrialized society. They developed these theories after observing all societies in Asia, Africa, Europe, and America. All of us showed similar development patterns.

permafrost layer, it exists beneath a layer of soil, rock or sediment.

answer; allows decision to stand;