| A | B |
|---|
| groundwater | precipitation that is stored between or within rocks |
| combustion | the burning of a substance |
| succession | gradual development of a community over time |
| photosynthesis | process that is the basis of the carbon cycle |
| nitrogen fixation | process that changes nitrogen gas into forms that plants can use |
| respiration | process in which sugar moleules are broken down to release energy |
| biodiversity | variety of species that are present in an area |
| evaportation | process in which water changes from liquid to vapor |
| precipitation | water, in solid or liquid form, that falls from the atmosphere to Earth |
| climax species | well-adapted species in a mature community |
| runoff | precipitation that falls on land and then flows into rivers and lakes |
| decomposition | breakdown of substances into simpler molecular substances |
| pioneer species | the first species to colonize an unhabited area |
| transpiration | process in which plants release a large amount of water vapor |
| organic | kind of molecule that contains carbon |
| condensation | process in which a vapor cools and returns to liquid |
