| A | B |
|---|
| aquifer | fresh underground water trapped between layers of sediment |
| deciduous | annual shedding of leaves or growth |
| deforestation | to clear or cut down trees or forests |
| ecosystem | a group of living organisms and their environment |
| geologist | a scientist who studies the development of the earth |
| magma | liquid and gaseous materials from inside the earth |
| meteorologist | someone who studies climate and forecasts the weather |
| ornithologist | a scientist who studies birds and thi |
| precipitation | the amount of moisture (rain or snow) that falls in a place during a specific period of time |
| Richter scale | a scale used to measure the size and intensity of an earthquake |
| seismologist | a scientist who studies the movements of the earth |
| tributary | a river or stream that flows into a larger body of water |
| water table | the level at which underground water is found |
