Final answer:
The category that includes Social, Cultural, and Environmental factors in the study of human societies is human ecology theory, which falls under the broader field of environmental sociology.
Step-by-step explanation:
The category that encompasses factors like Social, Cultural, and Environmental in the study of human societies is known as human ecology theory. This field broadly studies the relationship between humans and their environments, which includes how cultural practices and societal activities impact the environment and, in turn, how environmental conditions can influence human behavior and social structure.
Within the study of sociology and environmental sociology, researchers might look at how various behaviors, like farming, manufacturing, and urbanization, affect the environment and vice versa. Environmental sociology and human ecology theory also examine concepts like carrying capacity, indicating the maximum number of individuals or species an environment can sustain without degradation.