Track astronomical movements.
The school of thought that would most likely agree with uncle John is behaviorism.
Behaviorists believed that every type of action and behavior should be observed so as to be researched. If it cannot be directly observed, it doesn't require particular attention because it is not as relevant. Some famous behaviorists are Skinner, Watson, Pavlov, etc.
The Sahel part of Africa includes (from west to east) parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea, Cameroon, Central African Republic and the extreme north of Ethiopia
Traditionally, most of the people in the Sahel have been semi-nomads, farming and raising livestock in a system of transhumance, which is probably the most sustainable way of utilizing the Sahel. The difference between the dry North with higher levels of soil nutrients and the wetter South with more vegetation, is utilized by having the herds graze on high quality feed in the North during the wet season, and trek several hundred kilometers to the South to graze on more abundant, but less nutritious feed during the dry period
Answer:
The answer is D. Social stratification.
Explanation:
In sociology, social stratification is the concept used to analyze and describe the process of hierarchical arrangement in societies. This process is based on factors such as wealth, power and income, in other words, a person's place in social stratification derives from their control of basic resources. Nowadays, social stratification is made up of social classes, but historically there have been other terms to describe the positions in such stratification, for example, the term caste. Whichever the term used, it is used to separate society in large social groups depending on their control of resources and production means.
