Across
- 5. a layer of gas above the Earth's surface that protects human beings from harmful rays of the sun
- 7. a supply of workers
- 9. to sow seeds by throwing them over a field by hand
- 10. to use
- 14. an economy based on industry not agriculture
- 16. world-wide
- 18. new inventions; the science of industry
- 19. the essential materials needed in an industry to make a product
Down
- 1. animal droppings used to fertilize land
- 2. a complete change in something; the overthrow of the government
- 3. an act forbidding anyone except members of the Church of England from holding political office or entering professions
- 4. an increase in the world's temperature
- 6. animal food
- 8. the colonizing power in the language of colonialism
- 11. money used to invest in business
- 12. to feed on growing plants, such as grass
- 13. unproductive; inadequate in performance
- 15. land which could be used by everyone
- 17. a group of animals distinguished by particular characteristics
