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






2. Manage - protect and reintroduce threatened and endangered species






3. The pattern of overlapping food chains in an ecosystem






4. This draws people from urban areas to rural areas






5. An organism that breaks down wastes and dead organisms






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






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






8. Watering crops

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






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






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






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






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






14. A consumer that eats both plants and animals






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






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






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






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






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






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






21. One way zoos and aquariums help increase wildlife populations






22. The probability that a hazard will cause a harmful response






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






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






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






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






27. The largest population that an area can support






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






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






30. Fires that are set by humans






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






32. Using public transportation






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






34. Organism that carries pathogens






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






36. A virus or bacterium (organisms) that cause infectious diseases






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






38. The practice of protecting the environment






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






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






41. Amount of land each person uses






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






43. Causes a cooling effect

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44. Provide wood






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






46. Any substance that poses a chemical hazard






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






48. Help improve the standard of living for residents






49. 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






50. Burning fossil fuels







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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