| A | B |
|---|
| ecosystem | organisms that interact with their environment and eachother |
| ecology | study of ecosystems |
| photosynthesis | plants use sunlight as food |
| producers | plants make food for themselves and other organisms |
| consumers | eat plants and other consumers |
| food chain | path of energy and nutrients through a community |
| pollution | addition to harmful substances to the environment |
| point source pollution | comes from specific source |
| nonpoint source pollution | from many different sources |
| watershed | area which drains into body of water |
| water resources | ponds, lakes, any body of water |
| stormwater runoff | rainwater picks up sediment washing over land |
| hydrolic cycle | water cycle |
