Across
- 4. A terms used to describe the enormous variety of life on earth.
- 6. A natural event such as a flood,earthquake,or hurricane that causes great damage or loss of life.
- 7. electromagnetic radiation.
- 8. A microscopic organism,especially a bacterium,virus,or fungus.
- 11. The continuous flow of charged particles released from the upper atmoshpere of the Sun.
- 13. The total mass of organisms in a given area or volume.
- 14. Protect from harm or destruction.
- 15. The path followed by a projectile flying or an object moving under the action of given force.
- 17. on something or putting it through a special process.
- 19. A land area that channels rainfall and snowmelt to creeks,streams,and rivers,and eventually to outflow points such as reservoirs,bays,and the ocean.
- 21. Generated from rain and show melt events. that flow over land or impervious surfaces.
- 22. A conveyor with scrapers, buckets, or plows.
Down
- 1. Agricultural process of applying controlled amounts of water.
- 2. Having the knowledge or being aware of.
- 3. The process of putting a special
- 5. Help maintain power drainage and catch debris.
- 9. Not having the power to corrode.
- 10. Any of various invertabrate macroorganisms. (such as a crayfish or stone fly)
- 12. A drainage basin or watershed.
- 16. An area of land
- 18. reservoir in the northern portion of the US state of Georgia.
- 20. Thick,soft,wet mud or a similar viscous mix of liquid and solid components.
