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






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






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






4. A consumer that eats only animals






5. A form of decision-making concerned with the allocation and conservation of natural resources






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






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






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






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






10. By increasing the need for people to drive






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






12. Taking in carbon dioxide from the atmosphere during photosynthesis






13. Resulted in suppression of all forest fires

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






15. A consumer that eats both plants and animals






16. Organism that carries pathogens






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






18. Manage - protect and reintroduce threatened and endangered species






19. One way zoos and aquariums help increase wildlife populations






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






21. A nonliving part of an organism's habitat






22. Provide wood






23. Are carefully controlled






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






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






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






27. Chemicals that causes harm to embryos and fetuses






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






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






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






31. A living part of an organism's habitat






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






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






34. Has the highest amount of species diversity






35. Can result in a decrease of property damage






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






37. The loss of a natural habitat






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






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






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






41. Watering crops

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42. Making direct measurements






43. Rising sea level






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






45. The practice of protecting the environment






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






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






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






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






50. Leaving a population