Across
- 2. trash that is left lying in an open or public place
- 8. the process or skill of multiplying
- 13. the machines, wiring, and other physical components of a computer or other electronic system
- 15. power derived from the utilization of physical or chemical resources
- 17. an uncultivated, uninhabited, and inhospitable region
- 19. a complete and closed path around which a circulating electric current can flow
- 20. an artificial body placed in orbit
- 22. a source of energy that is not depleted by use, such as water, wind, or solar power
- 24. the process of growing plants in sand, gravel, or liquid
- 25. the ability to be maintained at a certain rate or level
- 26. a bird of prey, e.g., an eagle, hawk, falcon, or owl
Down
- 1. the necessary items for a particular purpose
- 3. a claw, especially one belonging to a bird of prey
- 4. the programs and other operating information used by a computer
- 5. device used to transmit or receive radio or television signals
- 6. moving from one region or habitat to another according to the seasons
- 7. a large fish-eating bird of prey
- 9. the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations
- 10. introduce air into a material
- 11. a light-emitting diode
- 12. a band or bundle of fibrous tissue in a human or animal body
- 14. an expert in or student of the branch of science concerning living organisms
- 16. a whitish bundle of fibers that transmits impulses of sensation
- 18. a large farm where cattle or other animals are bred and raised
- 21. a system of millions or billions of stars
- 23. the technical equipment or machinery needed for a particular activity or purpose