| A | B |
|---|
| nitrogen cycle | Cycle in which a gas in the air is fixed into a form that plants can use. |
| carbon-oxygen cycle | Cycle in which plants turn gas in air into oxygen |
| respiration | Process of releasing energy from food |
| condensation | Water vapor turning into water |
| evaporation | Water turning into water vapor |
| transpiration | Plants losing water through their stomata |
| precipitation | Water falling from clouds |
| water cycle | Cycle in which water moves through the environmnent |
