Across
- 1. decreasing the amount of natural resources that are used is called
- 4. __________________ resources are natural resources that cannot be easily replaced.
- 5. Recycling is the __________________ of the 3 R's because it requires manufacturing to produce a new product from the used material.
- 6. Nonrenewable resources form ____________; usually over thousands or millions of years
- 9. Natural ______________ are parts of the environment that supply materials useful or necessary for the survival of living things
Down
- 2. Limiting the amount of resources that we use is called ____________
- 3. _______________ is the contamination of the environment with substances that are harmful to life
- 7. ______________ resources are natural resources that can be replaced by natural processes in a relatively short period of time.
- 8. ______________ is manufacturing a new product out of used materials.
- 10. Using items again for a new purpose is known as ___________.
