| A | B |
|---|
| national park | a large area of land that a government has set aside in order to preserve in its natural state |
| topographic map | a map that uses elevation lines and symbols to show a region's physial and human features. Includes hills, valleys, rivers, lakes, roads, etc... |
| geyser | a spring that throws a jet of hot water into the air |
| fauna | all the animal life in a particular region |
| flora | all the plant life in a particular region |
| conservationist | someone who works to protect the beauty and natural resources of the environment from destruction or pollution |
| Continental Divide | a series of mountain ridges in North America that separate the streams and rivers that flow west into the Pacific Ocean from those that flow east into the Arctic and Atlantic Oceans |
| sewage | solid & liquid waste from homes and other buildings that is carried away by sewers or drains |
| toxic waste | waste materials from industry that are poisonous to humans or other living things |
