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






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






3. The pattern of overlapping food chains in an ecosystem






4. An organism that can make its own food






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






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






7. The amount of replacement is equal to the amount harvested






8. The practice of protecting the environment






9. Has the highest amount of species diversity






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






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






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






13. By increasing the need for people to drive






14. Amount of land each person uses






15. The highest level of biodiversity






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






17. Illegal killing or removal of wildlife from their habitats






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






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






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






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






22. Any substance that poses a chemical hazard






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






24. An area with a large population of valuable ocean organisms






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






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






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






28. Are carefully controlled






29. When fish are caught faster than they can breed - causing the populatio to decrease






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






31. Resulted in suppression of all forest fires

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32. The process of cutting down only some trees in an area






33. The loss of a natural habitat






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






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






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






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






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






39. Building up not out






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






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






42. Sex - weight - and health issues






43. Watering crops

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






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






46. Taking in carbon dioxide from the atmosphere during photosynthesis






47. The disappearance of all members of a species from Earth






48. A nonliving part of an organism's habitat






49. A living part of an organism's habitat






50. Leaving a population