Across
- 3. Cutting down of forests leading to increased erosion and slower soil regeneration.
- 4. The warming of the earth's temperature caused by depletion of the ozone layer and the greenhouse effect causing drastic changes in weather patterns around the world; also referred to as Climate Change
- 6. A group of similar organisms that can mate with each other and produce fertile offspring.
- 7. The process of making new products from materials that were used in another product.
- 9. A process that allows the organic material in solid waste to be decomposed and reintroduced into the soil, often as fertilizer.
Down
- 1. The total surroundings (living and nonliving) of an organism or a group of organisms.
- 2. A mixture of gases that surrounds our planet; can be polluted from exhaust from vehicles or factories.
- 5. Convert waste into reusable material.
- 7. A method of resource conservation that involves using products more that once
- 8. Waste materials from industry that are poisonous to humans or other living things