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. An organism that is killed and eaten by another organism






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






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






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






5. Watering crops

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






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






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






9. Making direct measurements






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






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






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






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






14. Causes a cooling effect

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






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






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






18. Manage - protect and reintroduce threatened and endangered species






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






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






21. One way zoos and aquariums help increase wildlife populations






22. Help improve the standard of living for residents






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






24. Bumps on the roots of certain plants






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






26. Organism that carries pathogens






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






28. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






29. Shift of population from countryside to cities






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






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






32. Chemicals that causes harm to embryos and fetuses






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






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






35. Building up not out






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






37. The loss of a natural habitat






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






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






40. By increasing the need for people to drive






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






42. Water vapor and carbon dioxide that trap heat near the earth






43. The pattern of overlapping food chains in an ecosystem






44. A species that is at risk of extinction






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






46. An organism that breaks down wastes and dead organisms






47. Contamination of land - water - or air






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






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






50. Illegal killing or removal of wildlife from their habitats