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DSST Environmental Science - 2

Subjects : dsst, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A natural resource that is not replaced in a useful time frame






2. Rising sea level






3. A region that has many different types of organism is described as having a high level of this






4. A consumer that eats only plants






5. Any substance that poses a chemical hazard






6. Resulted in suppression of all forest fires

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7. An organism that obtains energy by feeding on the other organisms






8. Making direct measurements






9. An organism that can make its own food






10. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






11. Species that are carried to a new location by people






12. All the members of one species in a particular area






13. By increasing the need for people to drive






14. A relationship between two species in which one species benefits and the other is neither helped nor harmed






15. Amount of land each person uses






16. Chemicals that cause cancer






17. The study of the natural processes that occur in the environment and how humans can affect them






18. A series of events in which one organism eats another and obtains energy






19. The disappearance of a particular population from a given area - but not from the entire species globally






20. A form of decision-making concerned with the allocation and conservation of natural resources






21. A natural pattern in which species diversity generally increases toward the equator






22. Contamination of land - water - or air






23. The study of how living things interact with each other and their environment






24. An organism that breaks down wastes and dead organisms






25. A species that influences the survival of many others in an ecosystem






26. The process of cutting down all the trees in an area at once






27. The form of transportation that uses the most energy per passenger mile






28. A nonliving part of an organism's habitat






29. Watering crops

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30. The struggle between organisms to survive as they attempt to use the same limited resource






31. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






32. Anything in the environment that is used by people is called a natural resource






33. A relationship in which one organism lives on or in a host and harms it






34. A close relationship between two species that benefits at least one of the species






35. Has the highest amount of species diversity






36. The most direct way in which biodiverstiy can provide a source of income






37. Help improve the standard of living for residents






38. A resource that is either always available or is naturally replaced in a relatively short time






39. Transportation systems - communications systems - water services - power supplies - and schools






40. The pattern of overlapping food chains in an ecosystem






41. The probability that a hazard will cause a harmful response






42. An amount of a renewable resource that can be harvested regularly without reducing the future supply






43. Are carefully controlled






44. A consumer that eats only animals






45. The loss of a natural habitat






46. Cooking oil - fuel - and medicines






47. Chemicals that causes harm to embryos and fetuses






48. The amount of replacement is equal to the amount harvested






49. Manage - protect and reintroduce threatened and endangered species






50. Moving into a population