Across
- 2. The supreme law of a country
- 7. The largest planet in the solar system
- 9. A mountain that can erupt lava
- 12. Opposition to the disestablishment of a church
- 14. Gas essential for breathing
- 15. The star at the center of our solar system
- 17. A popular programming language
- 20. Process by which plants make food using sunlight
Down
- 1. A community of living organisms and their environment
- 3. A common fruit that keeps the doctor away
- 4. Study of ancient human history through remains
- 5. The highest mountain in the world
- 6. You sit on this
- 8. Study of space and celestial objects
- 10. A natural flowing water body
- 11. A nerve cell in the brain
- 13. You read this
- 16. Instrument used to see tiny objects
- 18. Study of past events
- 19. A global network connecting computers