| A | B |
|---|
| Urbanization | Movement of people from rural areas to cities |
| Infrastructure | All things that a society builds for public use like roals, sewers, bridges, libraries, etc. |
| Urban Crisis | Results when more people live in a city that its infrastructure can support |
| Suburban Sprawl | Expansion of a city's borders |
| Land-Use Planning | Determining in advance where people will live, where land will be protected for farming, wildlife, recreation , and other uses |
| Clear Cutting | Involves removing all trees from a land area |
| Deforestation | Clearing trees from an area without replacing them |
| Overgrazing | When too many animals graze an area for too long and they damage the grass beyond recovery |
| Grazing Management | Involves limiting the animals herds to sizes the land can support |
| Range Improvement | Includes eliminating sagebrush, planting vegetation, fencing areas for recovery, and digging small water holes to keep animals from grazing in one area |
| Open-Pit Mining | Machines are used to dig large holes in the ground and remove ores |
| Strip Mining | Machines are used to clear away large strips on the Earth's surface |
| Reclamation | Restore mined land to its original condition |
| Wilderness | Area in which the land and the ecosystems it supports are protected from all development |
