Question

Which is the BEST example of a positive effect of human modification of the environment in the United States? A) deforestation and soil erosion in southern Alaska B) acid rain and water pollution in northern industrial areas strip mining and air pollution in Pennsylvania and West Virginia flood control, irrigation water, and hydroelectric power from the Hoover Dam​

Answer 1

The best example of a positive environmental modification in the U.S. is the Hoover Dam's provision of hydroelectric power, irrigation water, and flood control.

Step-by-step explanation:

The best example of a positive effect of human modification of the environment in the United States is flood control, irrigation water, and hydroelectric power from the Hoover Dam. The construction of the Hoover Dam across the Colorado River was a monumental feat of engineering that provided numerous benefits, including the generation of hydroelectric power, which is a clean and renewable energy source. In addition to power generation, the dam also provides irrigation water which supports agriculture in the region, and its design includes features for flood control to protect surrounding communities from potential flooding

Answer 2

Your answer would be B