Problem 2
What do you think would happen if the earth's tectonic plates stopped moving around? Explain. (Think about both short-term and long-term effects.)
Problem 5
List three ways in which a nanotechnology revolution (Science Focus, p. 288) could benefit you and three ways in which it could harm you.
Problem 9
Congratulations! You are in charge of the world. What are the three most important features of your policy for developing and using the world's nonrenewable mineral resources in the most sustainable way possible?
