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






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






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






4. Cooking oil - fuel - and medicines






5. Building up not out






6. A consumer that eats only animals






7. Using public transportation






8. The series of changes that occur in an area where no soil or organisms exist






9. By increasing the need for people to drive






10. A relationship between two species in which both species benefit






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






12. The largest population that an area can support






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






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






15. Resulted in suppression of all forest fires

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16. Can result in a decrease of property damage






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






18. The highest level of biodiversity






19. Watering crops

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






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






22. The process of changing free nitrogen gas into a usable form






23. Increase the stability of an ecosystem






24. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






25. Pollution from a factory near your school






26. The role of an organism in its habitat - or how it makes its living






27. This draws people from urban areas to rural areas






28. The loss of a natural habitat






29. Leaving a population






30. The breaking of a habitat into smaller - isolated pieces






31. One way zoos and aquariums help increase wildlife populations






32. Fires that are set by humans






33. Chemicals that causes harm to embryos and fetuses






34. A living part of an organism's habitat






35. A nonliving part of an organism's habitat






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






37. Amount of land each person uses






38. An example of a method for managing whole ecosystems and habitats






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






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






41. Making direct measurements






42. Are carefully controlled






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






44. Energy from the sun would be reflected back into space






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






46. Has the highest amount of species diversity






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






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






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






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