Across
- 1. pigment in leaves
- 4. Layer that protects from harmfull races of sun
- 6. Farmers best friend
- 7. Biggest planet in the world
- 9. Solar energy comes from
- 11. Destruction of forest
Down
- 2. First element in periodic table
- 3. Rainbow
- 5. Most abundant gas in environment
- 8. Primary Source of Oxygen
- 10. Nondegradable waste