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population and settl
Grade 6
| Term | Definition |
|---|---|
| population distribution | The way people are spread out in different places throughout the world. |
| environment | Surroundings. |
| irrigation | The use of canals, ditches, or pipes to move water to dry areas. |
| desertification | The long-term process in which fertile land is changed into desert. |
| drought | A period when little or no rain falls. |
| migration | Movement of groups of people from one place to another. |
| urbanization | The movement of people from rural areas to cities, or urban areas. |
| metropolitan area | A city and all the suburbs and other population areas around it. |
| demographer | A geographer who studies human populations. |