Across
- 1. a deadly disease usually transmitted by mosquitoes
- 6. caused people to flock to the cities to work
- 8. cleared by settlers to plant crops
- 9. communicate
- 11. built to house these workers
- 12. altered physical geography in the 1860s
Down
- 2. adjust
- 3. ditches or canals bringing water to dry areas
- 4. a body of land surrounded by water on three sides
- 5. known in the 1930s and caused by farming activity which disturbed the environment of the Great Plains
- 7. a long period without rain
- 10. invented and farmers tilled grassland with it