There are two kinds of energy sources from nonrenewable resources: fossil fuels and radioactive energy sources. Your readers will learn about a variety of products made from nonrenewable resources such as clay. Students also learn about the effects of nonrenewable resources on the local ecology. They will discover that exploiting a resource raises its price (Hotelling's Rule), and because nonrenewable resources can be used up, it's important to spend wisely the profit earned by using these resources (Hartwick's Rule). Practical tips for making good choices about nonrenewables are also covered in this engaging book.