Environmental Crossword

2. Resources that the Earth provides.
6. Resources existing in fixed amounts within Earth's crust.
7. The replacement of renewable resources at the same rate at which they are being consumed.
8. Held on surface in lakes, rivers, streams, or in the ground as groundwater.
11. Substance that can adversely affect the survival of organisms.
12. Found within or on Earth's surface that have the possibility of being used indefinitely.
14. Productive land becomes desert.
15. Indoor air pollution linked to illness.

1. Pollutants in the air that become harmful to humans and the environment.
3. Layers of crushed sand and stone that naturally accumulates on or near the Earth's surface.
4. A natural resource that can be mined as long as it is profitable.
5. Removing salt from ocean water to provide freshwater.
9. Material left behind as a result of grinding parent rock to remove ore.
10. Base of unweathered parent material.
13. Rocks deposited far from their origins.