Across
- 3. using a resource in such a way that it is not depleted or damaged
- 5. raw materials supplied by nature
- 6. a place where garbage is hauled and burned
- 7. to process waste in such a way as to reclaim raw material for future use
- 8. turning off lights help conserve
Down
- 1. this US Senator from Wisconsin founded Earth Day in 1970
- 2. the destruction of earth's trees
- 4. the physical conditions that surround and create a home for all living things