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. Provide wood






2. The mating of animals in zoos or wildlife preserves






3. Building up not out






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






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






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






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






8. Refers to an increase in Earth's average surface temperature






9. Any substance that poses a chemical hazard






10. Trees - grass - crops - wetlands - water - building and pavements






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






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






13. Using public transportation






14. Viruses - bacteria and other organisms in the environment that harm human health






15. Bumps on the roots of certain plants






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






17. The pattern of overlapping food chains in an ecosystem






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






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






20. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






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






23. The number of different species in an area






24. Habitat change and fragmentation






25. This draws people from urban areas to rural areas






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






27. Manage - protect and reintroduce threatened and endangered species






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






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






30. Causes a cooling effect

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






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






33. The loss of a natural habitat






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






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






36. Pollution from a factory near your school






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






38. Has the highest amount of species diversity






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






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






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






42. Contamination of land - water - or air






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






44. One way zoos and aquariums help increase wildlife populations






45. Chemicals that cause cancer






46. Chemicals that causes harm to embryos and fetuses






47. Organism that carries pathogens






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






49. An organism that can make its own food






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