Across
- 2. Mixture of gases that surrounds Earth
- 3. Source of almost all the energy used
- 5. Natural inorganic substances
- 12. Condition of weather in particular area
- 14. Area surrounding Earth
- 15. outer surface of Earth's surface
- 16. A plastid that contains chlorophyll
- 17. A waxy layer covering the epidermis
- 18. A nonrenewable source
- 20. A green pigment present in green plants
Down
- 1. Tasteless,colorless,liquid
- 4. A renewable source
- 6. Example of inorganic
- 7. How many types of natural resources?
- 8. Solid form of fossil fuels in factories
- 9. The control of plants and animals by man
- 10. Movement of air
- 11. Manufactures food for the plant
- 13. Leaf Arising from same part of the stem
- 19. Example of organic