Answer:
The health promotion model (HPM)
Explanation:
The health promotion model (HPM) is a concept that was first proposed by Nola Pender in 1982. This model was revolutionary in medical research and practice because it provided a completely new way of thinking about health. In this model, Pender argues that health cannot be simply defined as the absence of disease. Instead, it is a condition that can be seen as a dynamic state. Therefore, medical practitioners should not only concern themselves with getting rid of disease, but should also focus in increasing a client's well-being.
I'm almost positive it's Kalahari, not sure tho
Trades.
For example; the trade of wheat, other cash crops and natural resources