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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. The highest level of biodiversity






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






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






4. When fish are caught faster than they can breed - causing the populatio to decrease






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






6. Contamination of land - water - or air






7. Illegal killing or removal of wildlife from their habitats






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






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






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






11. The largest population that an area can support






12. Watering crops

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






14. Leaving a population






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






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






17. Chemicals that causes harm to embryos and fetuses






18. An organism that can make its own food






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






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






21. Chemicals that cause cancer






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






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






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






25. Pollution from a factory near your school






26. Deals with biological hazards






27. Using public transportation






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






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






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






31. Rising sea level






32. Bumps on the roots of certain plants






33. Organism that carries pathogens






34. The mating of animals in zoos or wildlife preserves






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






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






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






38. Are carefully controlled






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






40. Amount of land each person uses






41. Resulted in suppression of all forest fires

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






43. One way zoos and aquariums help increase wildlife populations






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






45. The loss of a natural habitat






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






47. A consumer that eats only plants






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






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






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






Can you answer 50 questions in 15 minutes?



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