Geographers oppong and kalipeni look to colonial labor structures as having a strong role in the rapid spread of hiv/aids. this is the thesis.

I believe this is the Migrant labor thesis. Migrant labor involves unskilled and casual workers who move from one region to another offering services on a temporary or seasonal basis. The migrant workers usually don't have an intention of staying permanently in a given country or region in which they work. This has a very strong role in the spread of HIV/AIDS.

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )