| A | B |
|---|
| harbor | a protected area of water where ships can dock safely |
| glacier | a huge, slow-moving mass of ice |
| blizzard | snowstorms with strong wind currents |
| quarry | a large, open pit cut into the ground from which stone is mined |
| confederation | a group of governments that work together |
| port | a trading center where goods are put onto and taken off ships |
| skyscraper | a very tall building |
| commute | travel back and forth between work and home |
| waterway | a body of water that boats can use |
| navigable | deep and wide enough for boats to use |
| canal | a waterway dug across land |
| Industrial Revolution | the period during which new power sources were used |
| textile mill | a factory that uses machines to produce cloth |
| urban growth | growth of cities |
| metropolitan area | a large city together with its suburbs |
| megalopolis | an urban region formed when two or more metropolitan areas grwo together |
