| A | B |
|---|
| canyon | a deep valley surrounded by high rocky walls |
| region | an area of land that has special features different from other areas of land (forest, desert, mountains) |
| surround | things are on all sides of you or form a circle around you |
| solution | the answer to a problem |
| dense | put together tightly or thick |
| permanent | something that will last for a very long time or forever |
| necessities | things you need in order to survive |
| regulate | to control things or keep them in order |
| relocation | when people move to a new community |
| origin | a starting point or place |
