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. Making direct measurements






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






3. Burning fossil fuels






4. A consumer that eats only animals






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






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






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






8. Provide wood






9. Bumps on the roots of certain plants






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






11. By increasing the need for people to drive






12. Using public transportation






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






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






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






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






17. Illegal killing or removal of wildlife from their habitats






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






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






20. Any substance that poses a chemical hazard






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






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






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






24. Contamination of land - water - or air






25. A consumer that eats only plants






26. Rising sea level






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






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






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






30. Fires that are set by humans






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






32. Manage - protect and reintroduce threatened and endangered species






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






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






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






36. Building up not out






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






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






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






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






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






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






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






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






45. Increase the stability of an ecosystem






46. Taking in carbon dioxide from the atmosphere during photosynthesis






47. A species that is at risk of extinction






48. A consumer that eats both plants and animals






49. An organism that breaks down wastes and dead organisms






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