Earth Systems

3. The organism that is responsible for converting nitrogen into and out of its various forms
4. The plate boundary where the less dense continental plate moves under the more dense oceanic plate
10. Process by which nitrate is converted to nitrogen gas
11. The plate boundary that is causing the Great Rift Valley in Africa.
13. The type of feedback loop demonstrated by a predator and a prey.
15. The nutrient found predominately in rock and must be mined or eroded
17. Both natural and artificial means of water moving across the ground.

1. The form of carbon produced during respiration
2. Evaporation of water from the leaf of a plant
5. Brings matter into a sink
6. The molecular form of nitrogen that can be used by plants
7. The soft layer of the upper mantle that the tectonic plates sit on
8. Process by which nitrogen gas is converted into ammonia
9. Water soaks into the ground
12. Matters leaves a sink
14. The plate boundary that moves in opposite direction and causes earthquakes
15. The type of feedback that causes a system to move to its extremes.
16. Also known as a pool, of either carbon, nitrogen or phosphorus