Across
- 3. Also known as the geosphere
- 4. One of the small amounts of gas
- 5. Earth's invisible shield
- 6. Made up of all living things
- 7. Traps heat to regulate temperature
- 9. Constantly interacts and shapes the environment
Down
- 1. 78% of the atmosphere
- 2. With the atmosphere, it releases rain
- 8. 21% of the atmosphere