Across
- 2. The world of living organisms
- 4. The world of non-living elements
- 5. the place, people, things and nature that surround any living organism
- 6. the solid crust or the hard top layer of the earth.
- 7. A narrow zone of the earth where land, water and air interact with each other to support life
- 8. The domain of water
Down
- 1. A system formed by the interaction of all living organisms with each other and with the physical and chemical factors of the environment in which they live
- 3. The thin layer of air that surrounds the earth.