| A | B |
| Aerobic Respiration | Oxygen consuming producers, consumers and decomposers break down complex organic compounds and convert C back into CO2 |
| Largest reservoirs of C | Carbonate rocks first, oceans second |
| Biotic/abiotic | Living & Nonliving components of an ecosystem |
| Producer/autotroph | Photosynthetic life |
| Fecal coliform/Enterococcus | Indicator of sewage containment |
| Energy flow in food webs | Only 10% the rest is transferred to heat |
| Chlorine | Good disinfection/Bad forms trihalomethanes |
| Photosynthesis | plants convert atmospheric C(CO2) into complex carbohydrates (glucose C6H12O6) |