| A | B |
|---|
| environment | everything that is around a living thing |
| ecosystem | all the living and nonliving things that interact in a place |
| habitat | the place where a plant or an animal lives |
| mountain | a high, raised part of Earth's surface |
| piedmont | an area with many hills, located between the mountains and the coastal plain |
| coastal plain | an area of low, flat land near an ocean |
| wetland | land that is covered with water most of the time |
| drought | a long period of time with little rain |
| balance | not too many and not too few of a kind of living thing |
