How to explain how the yellow river affects the jobs peoplehave and the foods they eat.

Due to the special environment around the river, people have to do corresponding things or jobs to live, such as hunters for hunting, farmers for ploughing, and fiherman for fishing.

In different fields with different conditions, it is suitable to plant different crops or plants. For example, in the middle and lower reaches, there are mostly plains and hills, which are suitable for wheat. Therefore, it decides people's food.