earth sysetem

2. A group of parts that work together as a whole
3. Bacteria changes nitrogen from a gas to a solid
5. children in the air is removed by the nitrogen fixing
8. Brittle,rocky layer on the outer layer of the earth
9. A series of process moves the phosphorus among earth systems
18. the thickest layer of the Earth
19. When animals die the phosphorus returns to the environment by
21. Continuous movements of water on,above, below on earth's surface.
22. Heat flowing out of Earth as it cools is one form of ----- that drives the Earth system.
24. Forces that wear down or destroy landmasses
25. Some organisms excrete phosphorus in there
26. The rigid, outermost shell of a rocky planet can be identified on the basis of its mechanical properties.
28. Organisms on earth use nitrogen to build
29. A system returns data to itself about changes that occur through a process called
30. What matter is exchanged with outer space and how much

1. Anything that has mass and takes up space
4. mostly composed of liquid iron and nickel.
6. Which sphere of the earth system includes trees grasses and squirrels
7. What absorbs phosphorus when they eat plants
10. Below the atmosphere it contains all earth's water; Oceans, glaciers, lakes, ice sheets, ponds and rivers.
11. What is Erse principal source of external energy
12. A series of processes that moves the carbon among the earth system.
13. A naturally occurring inorganic solid that has a crystal structure and a definite chemical composition
14. Largest Earth system, includes a thin layer of of soil and rocks on earth's surface it mainly solid, in the system it moves more slowly than gasses in the atmosphere
15. Thin layer of gasses, that is surrounding the earth
16. core it's the dense, metallic in the center of the earth
17. What allows this absorb this phosphorus in there roots
20. Blank that is moved from one area to another and builds in excess; sediment is carried by water, wind, and ice.
23. In the atmosphere, it absorbs and re-radiates the thermal energy from the sun.
27. Interaction among earth's system, it is a series of processes that changes rocks and forms to another.