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






2. Organism that carries pathogens






3. Soil - fresh water - wild animals - and timber






4. An organism that can make its own food






5. Chemicals that cause cancer






6. The practice of protecting the environment






7. Process of measuring the chance that an environmental hazard will cause harm






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






9. Contamination of land - water - or air






10. Manage - protect and reintroduce threatened and endangered species






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






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






13. Have a greater sensitivity to environmental hazards than any other group






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






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






16. Bumps on the roots of certain plants






17. Amount of land each person uses






18. The mating of animals in zoos or wildlife preserves






19. Causes a cooling effect

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20. Increase the stability of an ecosystem






21. Concentrations of toxicants can be greatly multiplied with each step up the food chain






22. Can result in a decrease of property damage






23. Resulted in suppression of all forest fires

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






25. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






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






27. One way zoos and aquariums help increase wildlife populations






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






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






30. Making direct measurements






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






32. Fires that are set by humans






33. Habitat change and fragmentation






34. A species in danger of becoming extinct in the near future






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






36. Leaving a population






37. An organism that is killed and eaten by another organism






38. Are carefully controlled






39. A nonliving part of an organism's habitat






40. The largest population that an area can support






41. The amount of carbon dioxide emissions for which an individual or group is responsible






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






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






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






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






46. A natural resource that is not replaced in a useful time frame






47. Chemicals that causes harm to embryos and fetuses






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






49. A consumer that eats both plants and animals






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







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Can you answer 50 questions in 15 minutes?


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