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. The practice of protecting the environment






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






3. The highest level of biodiversity






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






5. This draws people from urban areas to rural areas






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






7. Habitat change and fragmentation






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






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






10. Deals with biological hazards






11. Increase the stability of an ecosystem






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






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






14. A consumer that eats only plants






15. A consumer that eats both plants and animals






16. Help improve the standard of living for residents






17. A living part of an organism's habitat






18. An organism that breaks down wastes and dead organisms






19. Contamination of land - water - or air






20. By increasing the need for people to drive






21. 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






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






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






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






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






26. Watering crops

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27. Sex - weight - and health issues






28. One way zoos and aquariums help increase wildlife populations






29. Causes a cooling effect

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






31. Resulted in suppression of all forest fires

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






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






34. The largest population that an area can support






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






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






37. The loss of a natural habitat






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






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






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






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






42. Concentrations of toxicants can be greatly multiplied with each step up the food chain






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






44. Amount of land each person uses






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






46. Building up not out






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






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






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






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