| A | B |
|---|
| evaporation | change from liquid to gas |
| Condensation | change from gas to liquid |
| Precipation | water that falls from the atmosphere to the earth |
| decomposition | breakdown of living things |
| combustion | process of burning |
| succession | he replacement of one type of community by another at a single location over a period of time |
| pioneeer species | first plants that appear in primary succession |
| water cycle | movement of water from the earth,to the atmosphere and back to the earth |
| carbon cycle | exchange of carbon between the environment and living things |
| nitrogen cycle | movement of nitrogen between the environment and living things |
