Across
- 1. a mineral that makes up 1% of a persons total body weight
- 5. any body of water found on Earth's surface
- 6. conversion of a substance from the solid to the gaseous state without its becoming liquid
- 7. a colourless,odourless,tasteless gas
- 8. a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere.
- 11. water that exists underground in saturated zones beneath the land surface.
- 15. chemical element with symbol C and atomic number
- 16. happens when a liquid turns into a gas
- 17. the process where water vapor becomes liquid
Down
- 2. a natural gas
- 3. rain, snow, sleet, or hail — any kind of weather condition where something's falling from the sky.
- 4. the loss or removal of nitrogen or nitrogen compounds
- 9. the process of combining, mixing, or filling with nitrogen or one of its compounds.
- 10. the process by which plants give off water vapor through the stomata in their leaves
- 12. the loss or removal of nitrogen or nitrogen compounds
- 13. chemical element
- 14. the continuous movement of water within the earth and its atmosphere