Biology Crossword Puzzle

4. is when water goes from liquid to a gas/vapor and goes into the atmosphere.
5. water that is trapped underground
7. The process of turning nitrates into atmospheric gas done by anaerobic bacteria.
10. This is a substance humans need to breathe
12. This elements cycle starts in the soil
15. when something goes from a solid to a liquid without becoming a liquid.
16. water Water that Is visible ,and stays on Earth's surface.
17. its evaporation from aerial parts like leaves,
18. The salts of this element are broken down from rocks and then washed a way and mixed int the soil by water
19. Water that collects as water droplets on Earth's surface especially while in contact with humid air.

1. The process of turning ammonium into nitrites.
2. This is when water falls back down to Earth through rain, snow, fog, hail, sleet,etc.
3. This is Earth's way of reusing carbon atoms which travel from the atmosphere to organisms on Earth
6. then back to the atmosphere over and over again
8. The process of water movement through a plant
9. This element is produced by fossil fuels especially natural gases.
11. This cycle shows how water moves around, goes a way, and comes back to Earth.
13. Bacteria in the soil convert nitrogen to ammonium
14. the substance plants release during respiration
15. and flowers.