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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 relationship between two species in which both species benefit






2. The most effective way of preserving biodiversity by protecting whole ecosystems






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






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






5. A consumer that eats only animals






6. Burning fossil fuels






7. A carnivore that feeds on the bodies of dead organisms






8. Chemicals that causes harm to embryos and fetuses






9. The organism that does the killing in a predation interaction






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






11. Shift of population from countryside to cities






12. The largest population that an area can support






13. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






14. A species that could become endangered in the near future






15. A behavior or physical characteristic that allows an organism to live successfully in its environment






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






17. Making direct measurements






18. A consumer that eats both plants and animals






19. Refers to an increase in Earth's average surface temperature






20. Deals with biological hazards






21. An environment that provides the things an organism needs to live - grow - and reproduce






22. Causes a cooling effect

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23. Rising sea level






24. Increase the stability of an ecosystem






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






26. A virus or bacterium (organisms) that cause infectious diseases






27. The pattern of overlapping food chains in an ecosystem






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






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






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






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






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






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






34. Any substance that poses a chemical hazard






35. An organism that can make its own food






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






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






38. Sikhote-Alin mountains and the Siberian tigers living there are separated from other mountains by this






39. The practice of protecting the environment






40. Pollution from a factory near your school






41. An organism that breaks down wastes and dead organisms






42. A group of land ecosystems with similar climates and organisms






43. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






44. A consumer that eats only plants






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






46. Chemicals that cause cancer






47. The loss of a natural habitat






48. Businesses are arranged in a long row along a roadway - with no main community






49. Moving into a population






50. Can result in a decrease of property damage







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Can you answer 50 questions in 15 minutes?


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