Across
- 3. a group of animals distinguished by a particular characteristic
- 5. unproductive
- 6. animal droppings used to fertile land
- 9. to sow seeds by throwing them over a field by hand
- 10. to use
- 11. the materials needed in an industry to make a product
- 13. an increase in the world's temperature
- 14. the science of industry
- 15. to feed on growing plants
Down
- 1. animal food
- 2. money used to invest in a business
- 4. an economy based on industry
- 7. a layer of gas above the Earth's surface
- 8. a complete change in something
- 12. land help to be used by everyone