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. A consumer that eats both plants and animals






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






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






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






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






6. Habitat change and fragmentation






7. Watering crops

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






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






10. Using public transportation






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






12. The practice of protecting the environment






13. Shift of population from countryside to cities






14. The pattern of overlapping food chains in an ecosystem






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






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






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






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






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






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






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






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






23. Leaving a population






24. Taking in carbon dioxide from the atmosphere during photosynthesis






25. The mating of animals in zoos or wildlife preserves






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






27. Bumps on the roots of certain plants






28. The largest population that an area can support






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






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






31. Deals with biological hazards






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






33. Any substance that poses a chemical hazard






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






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






36. Anything in the environment that is used by people is called a natural resource






37. Contamination of land - water - or air






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






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






40. One way zoos and aquariums help increase wildlife populations






41. Organism that carries pathogens






42. Making direct measurements






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






44. Resulted in suppression of all forest fires

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






46. An organism that breaks down wastes and dead organisms






47. Chemicals that cause cancer






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






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






50. Rising sea level