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. One way zoos and aquariums help increase wildlife populations






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






3. A consumer that eats only animals






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






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






6. Contamination of land - water - or air






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






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






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






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






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






12. The amount of replacement is equal to the amount harvested






13. By increasing the need for people to drive






14. Can result in a decrease of property damage






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






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






17. Moving into a population






18. Chemicals that causes harm to embryos and fetuses






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






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






21. An amount of a renewable resource that can be harvested regularly without reducing the future supply






22. An organism that breaks down wastes and dead organisms






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






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






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






26. A nonliving part of an organism's habitat






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






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






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






30. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






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






32. Making direct measurements






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






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






35. Pollution from a factory near your school






36. The study of how living things interact with each other and their environment






37. The loss of a natural habitat






38. Bumps on the roots of certain plants






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






40. Burning fossil fuels






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






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






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






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






45. Resulted in suppression of all forest fires

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46. A living part of an organism's habitat






47. The largest population that an area can support






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






49. Increase the stability of an ecosystem






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