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. Chemical hazard that was once found in paint - young children are frequently tested for this






2. Chemicals that causes harm to embryos and fetuses






3. Organism that carries pathogens






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






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






6. Shift of population from countryside to cities






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






8. Any substance that poses a chemical hazard






9. Cooking oil - fuel - and medicines






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






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






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






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






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






15. Rising sea level






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






17. A nonliving part of an organism's habitat






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






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






20. Resulted in suppression of all forest fires

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






22. Using public transportation






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






24. Watering crops

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25. Fires that are set by humans






26. Can result in a decrease of property damage






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






28. The mating of animals in zoos or wildlife preserves






29. Making direct measurements






30. Habitat change and fragmentation






31. Manage - protect and reintroduce threatened and endangered species






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






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






34. Taking in carbon dioxide from the atmosphere during photosynthesis






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






36. Has the highest amount of species diversity






37. Illegal killing or removal of wildlife from their habitats






38. An organism that breaks down wastes and dead organisms






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






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






41. Increase the stability of an ecosystem






42. A living part of an organism's habitat






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






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






45. Help improve the standard of living for residents






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






47. Causes a cooling effect

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48. The largest population that an area can support






49. An area with a large population of valuable ocean organisms






50. Contamination of land - water - or air