Humans can impact the Earth in both positive and negative ways. Cutting down forests, mining for resources, and creating factories that produce toxic gases are several of the negative ways that humans can affect the environment.
Which of the following is an example of a positive way for humans to impact the Earth?
A. Humans can remove rocks and soil and cut down trees in the process of constructing buildings.
B. Humans can plant trees in areas where trees have been removed by loggers.
C. Humans can build several dams in a river to stop the natural flow of water or change its route.
D. Humans can burn fossil fuels instead of using wind or solar power.