| A | B |
|---|
| boigeochemical cycle | the cycling of chemical elements through non-living and living parts of an ecosystem. |
| runoff | the precipitation that flows over the surface of soil. |
| collection | the process by which precipitation is gathered into a body of water. |
| photosynthesis | the process that green plants to make sugars from water, carbon dioxide, and sunlight which releases oxygen into the atmosphere. |
| cellular respiration | the process in cells by which oxygen and glucose are used to produce energy and carbon dioxide. |
| fossil fuel | a source of energy formed from dead plants and animals. |
| nitrogen fixation | the conversion of nitrogen in the atmosphere to a form that can be used by plants |
| legume | a plant that hosts nitrogen-fixing bacteria in nodules on it's roots. |
| nodule | a swelling on a plant root that contains nitrogen-fixing bacteria |
| denitrification | the process that releases nitrogen from soil back into the atmosphere |
| photo chemical smog | the brown smog produced when air pollutant react with sunlight. |
| emision | a pollutant released into the atmosphere. |
| acid precipitation | the precipitation that is more acidic than normal rainwater. |
| life cycle | the stages that an organism passes through from egg or spore to the reproducing adult |
| generation | one complete life cycle |
| genetic materrial | the set of of instructions within a cell that controls an organism's characteristics and life processes |
| unicellular | consisting of only one cell |
| fungus | a decomposer that usually reproduces through spores. |
| mushroom | a fleshy spore-producing growth of certain fungi. |
| gills | the structures on the underside of a mushroom. |
