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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. Using public transportation






2. Provide wood






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






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






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






6. Bumps on the roots of certain plants






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






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






9. Manage - protect and reintroduce threatened and endangered species






10. Are carefully controlled






11. Shift of population from countryside to cities






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






13. The largest population that an area can support






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






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






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






17. A species that is at risk of extinction






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






19. Contamination of land - water - or air






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






21. The practice of protecting the environment






22. Has the highest amount of species diversity






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






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






25. Chemicals that cause cancer






26. A nonliving part of an organism's habitat






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






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






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






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






31. Making direct measurements






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






33. Leaving a population






34. Resulted in suppression of all forest fires

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35. Rising sea level






36. The loss of a natural habitat






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






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






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






40. A consumer that eats both plants and animals






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






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






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






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






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






46. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






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






50. Watering crops

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