The Carbon Cycle

3. group of compounds built with amino acids
6. a carbon rich energy source such as coal, petroleum, or natural gas, formed from the compressed, fossilized remains of once living organisms
7. the movement of carbon atoms as they cycle between organic moecules and inorganic CO2
9. atmosphere, lithosphere, ocean, and living things
10. a very large expanse of sea DIC, calcium carbonate shells; carbon residence time varies here
11. a chemical element with the symbol C and atomic number 6
14. group of compounds characterized as fatty and rich in energy
15. everything that is alive and is built from cells, form of carbon- macromolevules; carbon residence time varies here

1. carbon dioxide-the envelope of gases surrounding the earth or another planet. Carbon is here the shortest amount of time.
2. the weather conditions prevailing in an area in general or over a long period
4. a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions
5. lipids, carbohydrates, nucleic acids, and proteins
8. an organic compound consisting of carbon, hydrogen, and oxygen atoms
12. nucleotides which store genetic information in biological systems
13. the rigid outer part of the Earth consiting of the crust and the upper mantle contains fossil fuels, soil, and rocks. Carbon lasts the longest here.