Across
- 3. chemical that kills pests; sometimes this includes
- 6. aquatic species in net pens or tanks. It can be in
- 8. system of channels, pipes, or tunnels that carry water a
- 9. the fresh water we use first as a result of percipitaion
- 13. can also be defined by their method of dispersal (i.e.
- 14. removal of salt from salt water to make fresh water
- 16. or their mode of action like an ovicide, which kill the
- 18. If genetically modified fish get into the Ocean it can destroy
- 20. the same crop
- 22. make enough for themselves and
- 28. agents that have a specific type of pests -- herbicides kill plants
- 29. River/important source of fresh water in many states
- 30. of pests
Down
- 1. used as pesticides. Examples include: arsenic, copper, lead and
- 2. indefinitely without reducing its available supply
- 3. a plot of land with several varieties
- 4. They are generally highly toxic and remain in the environment
- 5. yield/Highest rate at which a renewable resource can be
- 7. that kill fungi
- 10. and often causes sickness
- 11. capital, fossil fuel, water, commercial fertilizers, and
- 12. that drive away pests or prevents their development;
- 15. precipitaion that inflitrates the ground and
- 17. heavy equipment and large amounts of
- 19. downward through voids.
- 21. health due to a lack of eating the right kinds of
- 23. southern california
- 24. pesticides/inorganic chemicals such as metals, acids, or
- 25. underground layer of rock or soil through which water easily moves
- 26. families, produce 20% of the world's food
- 27. distance.