Across
- 4. all of the water in our planet
- 5. the lowest level in the atmosphere
- 7. greek word that means "life"
- 8. greek word that means "ground"
- 9. a body of flowing water moving towards the sea
Down
- 1. all of the living organisms on earth
- 2. a large body of water surrounded by land
- 3. greek word that means "air"
- 6. greek word that means "water"
- 7. a region with similar plants, animals, terrain, and climate