1. Your friend says that groundwater is a nonrenewable resource. Do you agree? 2. Rain falls on land. Then what happens to it? 3. Why does the area of the continental shelf change over geologic time?...

1. Your friend says that groundwater is a nonrenewable resource. Do you agree?

2. Rain falls on land. Then what happens to it?

3. Why does the area of the continental shelf change over geologic time? (Hint: Is sea level constant?)

4. If surface reservoirs such as lakes and streams suddenly dried up, would people have another source of drinking water? Explain.