Laws that segregated African Americans and denied them access to public services were known as

In the United States, presidential decrees are known as ______.

A. executive orders B. laws C. propositions D. amendments

An example of the tragedy of the commons would be:

a. when your roommate drinks all of your soda from the shared refrigerator b. when one country cuts down all of its forests and sells the timber c. when the fish in the ocean are overfished and depleted d. when the world consumes all of the available oil in the ground