Test your basic knowledge |

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. By increasing the need for people to drive






2. The number of different species in an area






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






4. Making direct measurements






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






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






7. Amount of land each person uses






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






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






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






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






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






13. Illegal killing or removal of wildlife from their habitats






14. A living part of an organism's habitat






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






16. Watering crops

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17. Any substance that poses a chemical hazard






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






19. The practice of protecting the environment






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






21. An organism that breaks down wastes and dead organisms






22. Organism that carries pathogens






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






24. A species that is at risk of extinction






25. Land that is sparsely populated and has few buildings or roads






26. Moving into a population






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






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






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






30. Resulted in suppression of all forest fires

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31. The highest level of biodiversity






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






33. A consumer that eats both plants and animals






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






35. Provide wood






36. One way zoos and aquariums help increase wildlife populations






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






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






39. The pattern of overlapping food chains in an ecosystem






40. A large area heavily populated like Miami - Florida or Toledo - Ohio






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






42. This draws people from urban areas to rural areas






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






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






45. The loss of a natural habitat






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






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






48. Sex - weight - and health issues






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






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