| A | B |
|---|
| environmental science | study how humans interact with the environment |
| environment | everything that surrounds us |
| natural resource | any natural substance that living things use |
| resource depletion | large part of the ressource is used up |
| nonrenewable resource | those resources that can't be replaced |
| renewable resources | continually replaced, but can become depleted |
| pollution | poisoning of our air, water or soil |
| biosphere | thin layer of life around the Earth |
| ecology | how living things depend on and interact with each other |
| ecosystem | all of the organisms living in an area |
| niche | an organism's "job" |
| habitat | actual place an organism lives |
| prey | food for another organism |
| predator | organism which hunts for food (prey) |
