Across
- 3. the process of replanting an area with trees.
- 5. wild animals collectively; the native fauna (and sometimes flora) of a region.
- 7. a colourless, transparent, odourless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.
Down
- 1. the surroundings or conditions in which a person, animal, or plant lives or operates.
- 2. the phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.
- 4. the weather conditions prevailing in an area in general or over a long period.
- 6. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.