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. Contamination of land - water - or air






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






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






4. Viruses - bacteria and other organisms in the environment that harm human health






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






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






7. Can result in a decrease of property damage






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






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






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






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






12. Chemicals that causes harm to embryos and fetuses






13. Provide wood






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






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






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






17. A living part of an organism's habitat






18. Illegal killing or removal of wildlife from their habitats






19. Transportation systems - communications systems - water services - power supplies - and schools






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






21. Organism that carries pathogens






22. A natural resource that is not replaced in a useful time frame






23. Causes a cooling effect

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






25. Building up not out






26. Resulted in suppression of all forest fires

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27. The highest level of biodiversity






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






29. Deals with biological hazards






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






31. Increase the stability of an ecosystem






32. Using public transportation






33. An organism that can make its own food






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






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






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






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






38. Trees - grass - crops - wetlands - water - building and pavements






39. Manage - protect and reintroduce threatened and endangered species






40. A region that has many different types of organism is described as having a high level of this






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






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






43. Taking in carbon dioxide from the atmosphere during photosynthesis






44. The mating of animals in zoos or wildlife preserves






45. An organism that breaks down wastes and dead organisms






46. Process of measuring the chance that an environmental hazard will cause harm






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






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






49. A species that is at risk of extinction






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