crossword
Across
- 3. process by which sun generate light
- 4. process used by plants to synthesise food
- 8. Chemical that give flower colours
- 10. Ingenhousz: person who discovered the process of photosynthesis
- 12. substance that lights firefly's fire
- 13. terpenes responsible for smell of lemon
- 14. process of formation of blood cells in our body
Down
- 1. Universal solvent
- 2. plant that is used to control pollution
- 5. most abundant element in earth's core
- 6. alkaloid found in potatoes
- 7. layer formed through the interaction of solar ultraviolet radiation with molecular oxygen
- 9. alkaloid found in tea leaves
- 11. most abundant gas in atmosphere