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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. Help improve the standard of living for residents






2. Burning fossil fuels






3. The highest level of biodiversity






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






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






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






7. Chemicals that causes harm to embryos and fetuses






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






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






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






11. Using public transportation






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






13. Manage - protect and reintroduce threatened and endangered species






14. The number of different species in an area






15. Watering crops

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






17. Illegal killing or removal of wildlife from their habitats






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






19. By increasing the need for people to drive






20. Deals with biological hazards






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






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






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






24. A species that is at risk of extinction






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






26. Contamination of land - water - or air






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






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






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






30. Leaving a population






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






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






33. Cooking oil - fuel - and medicines






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






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






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






37. Making direct measurements






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






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






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






41. The clearing of a forest and replacing it with another land use






42. Any substance that poses a chemical hazard






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






44. Building up not out






45. Resulted in suppression of all forest fires

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






47. Provide wood






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






49. Water vapor and carbon dioxide that trap heat near the earth






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