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. Increase the stability of an ecosystem






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






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






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






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






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






7. A species in danger of becoming extinct in the near future






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






9. Are carefully controlled






10. Pollution from a factory near your school






11. Help improve the standard of living for residents






12. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






15. Any substance that poses a chemical hazard






16. An organism that is killed and eaten by another organism






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






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






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






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






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






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






23. Using public transportation






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






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






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






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






28. Watering crops

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






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






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






32. Can result in a decrease of property damage






33. Deals with biological hazards






34. Building up not out






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






36. A carnivore that feeds on the bodies of dead organisms






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






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






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






40. Chemicals that cause cancer






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






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






43. Amount of land each person uses






44. Sex - weight - and health issues






45. Causes a cooling effect

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






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






48. Resulted in suppression of all forest fires

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49. The highest level of biodiversity






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