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 disappearance of all members of a species from Earth






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






3. Building up not out






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






5. Taking in carbon dioxide from the atmosphere during photosynthesis






6. Chemicals that cause cancer






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






8. Are carefully controlled






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






10. Any substance that poses a chemical hazard






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






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






13. Pollution from a factory near your school






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






15. A consumer that eats only plants






16. Cooking oil - fuel - and medicines






17. The mating of animals in zoos or wildlife preserves






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






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






20. Shift of population from countryside to cities






21. A consumer that eats only animals






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






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






24. An organism that breaks down wastes and dead organisms






25. This draws people from urban areas to rural areas






26. A species that influences the survival of many others in an ecosystem






27. Rising sea level






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






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






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






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






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






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






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






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






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






37. Amount of land each person uses






38. Loud noises in the air like jack hammers - loud car stereos - etc...






39. Chemicals that causes harm to embryos and fetuses






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






41. A nonliving part of an organism's habitat






42. The practice of protecting the environment






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






44. Has the highest amount of species diversity






45. An organism that can make its own food






46. Can result in a decrease of property damage






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






48. Watering crops

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






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