Across
- 2. places, usually in a desert, where water can be found
- 5. a region in the Huang He River valley, where Chinese civilization began
- 7. to improve the quality of something
- 9. a stream or river that feeds into a larger stream, river, or lake
- 10. light, fertile soil that yields bountiful grain crops
Down
- 1. to set apart from other people or things
- 3. The process of making everything the same
- 4. a family or group that rules for several generations
- 6. A country led by an authoritarian government.
- 8. a system of government based on landowners and tenants