Life Cycle's Crossword

6. The process of water seeping into the ground to become groundwater.
8. Atmospheric carbon dioxide reacts with surface oceans to form this.
9. The process by which water falls to earth that includes rain, snow, sleet, and hail.
12. A group of organisms that play a key role in the decomposition of dead organic matter during the carbon cycle.
13. The process by which carbon is released into the atmosphere when fossil fuels are burned.
15. 97% of Earth's water is found here.
16. This organism plays a key role in the nitrogen cycle.
19. This gas makes up a majority of the atmosphere

1. The conversion of ammonia into nitrite and then into nitrate by bacteria in the soil.
2. Water that is found below Earth's surface.
3. The process by which nitrates are converted into nitrogen gas by denitrifying bacteria.
4. Nitrogen is converted into this through Nitrogen Fixation.
5. The process by which nitrates and nitrites in the soil are taken up by plant roots.
7. The process by which plants and some bacteria convert carbon dioxide and water into glucose and oxygen.
10. The process of living organisms putting carbon dioxide into the atmosphere.
11. The process of organic matter being broken down by bacteria and fungi into simpler substances, releasing carbon dioxide.
14. The release of water vapor from plants into the atmosphere.
17. This gas, essential for photosynthesis, is released during the carbon cycle when organisms respire.
18. The process by which water flows over the surface of the Earth into bodies of water, such as rivers and oceans.