Across
- 2. Exchange of goods or services
- 4. Main source of food supported by the fertile land
- 7. Streams of water used for trade and fishing
- 8. Land capable of yielding crops
- 10. Mesopotamia's most popular trade item
Down
- 1. The earliest form of trade
- 3. More than needed
- 5. Tax on imports and exports
- 6. Common issue leading to slavery
- 9. Technique used to boost agriculture