The United States has many resources, both natural and human, for them to manage.
Let's look at two of their natural resources.
There is lots of coal in the United States, particularity in states close to the Appalachians. Of course, coal mining is quite risky. Coal dust is toxic, and it can catch fire and explode easily. You might have heard about the coal mine in West Virginia that exploded in 2006.
The US's management of coal gives Americans a cheap source of energy. However, it could also be said that the lack of management—or loose oversight—has had an adverse impact on its citizens.
Last year, the US government relaxed rules concerning coal ash. Each year, coal plants produce around 110 million tons of coal ash. The ash contains arsenic, radium, and other elements that pose a great risk to the air Americans breathe, the water they drink, and their overall health.
Oil, too, is a resource found in the United States. As with coal, oil is managed to provide American with a source of energy, but the mismanagement poses a grave risk to Americans and their health. Oil pipelines leak and contaminate water supplies and land. Also, oil spills devastate environments and harm the people whose livelihoods require clean environments.
You might also want to look into how United States manages all of its military resources, its financial resources, and its educational and medical resources. How much money is spent on the military as opposed to other areas? What impact does this have on its citizens and people across the globe?