Biogeochemical Cycles

2. an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances.
4. when precipitation falls on top of mountains, it reaches larger bodies of water in the form of ___.
6. The _______ cycle includes the water, nitrogen, carbon, and phosphorus cycles.
8. a.k.a. the water cycle
10. greenhouse gases are a prime example of _________ on the environment. (two words)
11. the extent to which a surface is able to reflect radiation.
12. passage of water through a porous material (ie. soil), which acts as a filter.
13. clouds form as a result of _______.
14. makes up almost 79% of the Earth’s atmosphere.

1. The atmosphere does not play a major role in this cycle.
2. the removing of nitrogen
3. the element found in period 2 and group 14 on the periodic table.
5. As water seeps down through soil and rock, it carries the minerals found within the rocks and soil with it to lower soil levels.
7. Rain is a form of ______.
9. water seems to "dissapear" though ______.