A way to demonstrate to yourself that light is a wave is by
A) allowing light from two flashlights to strike a screen.
B) observing light as it bends while passing from air into water.
C) using a prism to separate light into its various components.
D) allowing light to reflect from a mirror.
E) observing the light that passes through a narrow space between your fingers.
Question 2
Consider the four U.S. non-renewable energy resources: gas, oil, coal, uranium without recycling for plutonium recovery. Assuming that we used each of these for a major portion of our energy needs, for which ones would domestic U.S.
resources run out within some 50 years, and which ones does the United States have in much greater abundance?
A) The United States is running out of gas and oil, but has abundant coal and uranium.
B) The United States is running out of all four.
C) The United States is running out of gas, oil, and uranium, but has abundant coal.
D) The United States has abundant supplies of all four of these resources.
E) The United States is running out of gas, oil, and coal, but has abundant uranium.