I would recommend going on Amazon.com and buying this book to help you study and prioritize.
I just answered this an the correct answer is B the study of people and their environments <span />
Contour lines do not cross one another because each line represents a different elevation on a topographic map.<span> </span>
Human activities such as mining, pollution, minerals processing, landfills, etc have an effect on the flow pattern.
<h3>
Effect of pollution</h3>
It should be noted that pollution is usually difficult to control because it is often the result of human infrastructure around a river.
For example, sewage and effluent are discharged into rivers in some areas and this can lower the pH of the water, and hence affect the organisms.
Also, human activities such as mining, pollution, minerals processing, landfills, impact negatively on the quality of water and the flow pattern in the upper reaches of the blood river in Limpopo.
Learn more about pollution on:
brainly.com/question/24704410
I know it might be too late, but I believe the answer is B) US research and design with mostly Asian production.
