What are the four main modes of subsistence found in human societies? For each mode of subsistence discuss (1) the size, density, and location of settlements; (2) daily and yearly activities; (3)...

What are the four main modes of subsistence found in human societies? For each mode of subsistence discuss (1) the size, density, and location of settlements; (2) daily and yearly activities; (3) population movement and/or settlement patterns; (4) social structure and organization (5)