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. The study of the natural processes that occur in the environment and how humans can affect them






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






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






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






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






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






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






8. An organism that breaks down wastes and dead organisms






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






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






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






12. A consumer that eats only plants






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






14. Has the highest amount of species diversity






15. An organism that can make its own food






16. A consumer that eats only animals






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






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






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






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






21. Bumps on the roots of certain plants






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






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






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






25. Chemicals that causes harm to embryos and fetuses






26. One way zoos and aquariums help increase wildlife populations






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






28. Using public transportation






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






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






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






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






33. This draws people from urban areas to rural areas






34. A species that is at risk of extinction






35. The breaking of a habitat into smaller - isolated pieces






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






37. The largest population that an area can support






38. A living part of an organism's habitat






39. The highest level of biodiversity






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






41. Causes a cooling effect

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






43. The loss of a natural habitat






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






45. Rising sea level






46. The number of different species in an area






47. Building up not out






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






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






50. Watering crops

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