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. This draws people from urban areas to rural areas






2. Deals with biological hazards






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






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






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






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






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






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






9. Contamination of land - water - or air






10. A consumer that eats only animals






11. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






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






14. Habitat change and fragmentation






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






16. The process of cutting down only some trees in an area






17. The largest population that an area can support






18. The practice of protecting the environment






19. Are carefully controlled






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






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






22. A nonliving part of an organism's habitat






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






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






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






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






27. An organism that breaks down wastes and dead organisms






28. Help improve the standard of living for residents






29. Any substance that poses a chemical hazard






30. One way zoos and aquariums help increase wildlife populations






31. Building up not out






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






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






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






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






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






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






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






39. Species that are carried to a new location by people






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






41. Watering crops


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






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






44. Rising sea level






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






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






47. Leaving a population






48. Shift of population from countryside to cities






49. A consumer that eats both plants and animals






50. Organism that carries pathogens