Across
- 1. variety of plant and animal
- 3. a course or principle of action adopted or proposed by an organization or individual
- 7. knowledge or perception of a situation or fact
- 8. put into effect
- 9. relating to the natural world
- 10. Earth day movement was backed by this man
Down
- 2. cutting down of trees
- 4. the condition of being populated with excessively
- 5. come together in order to support a person or cause
- 6. use up the supply or resources of