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. Burning fossil fuels






2. Are carefully controlled






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






4. An organism that can make its own food






5. Organism that carries pathogens






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






7. Resulted in suppression of all forest fires

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8. Using public transportation






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






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






11. A consumer that eats both plants and animals






12. Chemicals that causes harm to embryos and fetuses






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






14. A living part of an organism's habitat






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






16. The pattern of overlapping food chains in an ecosystem






17. Rising sea level






18. The highest level of biodiversity






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






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






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






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






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






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






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






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






27. Building up not out






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






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






30. Amount of land each person uses






31. A nonliving part of an organism's habitat






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






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






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






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






36. Help improve the standard of living for residents






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






38. Pollution from a factory near your school






39. Habitat change and fragmentation






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






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






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






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






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






45. The mating of animals in zoos or wildlife preserves






46. Making direct measurements






47. One way zoos and aquariums help increase wildlife populations






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






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






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