Public goods, such as clean air and national defense, are

Question

Quizplus · Accepted Answer

Public goods like clean air and national defense are characterized as indivisible and non-rival, meaning they can be used by one person without reducing their availability to others. The "tragedy of the commons," as described by Garrett Hardin, also relates to the difficulty in managing and sustaining common resources (like clean air) due to individual incentives that lead to overuse and depletion, making both A and D correct.

Public Goods, Such as Clean Air and National Defense, Are