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. An area with a large population of valuable ocean organisms






2. Amount of land each person uses






3. Taking in carbon dioxide from the atmosphere during photosynthesis






4. The pattern of overlapping food chains in an ecosystem






5. Shift of population from countryside to cities






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






7. Chemicals that cause cancer






8. Fires that are set by humans






9. Habitat change and fragmentation






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






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






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






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






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






15. Businesses are arranged in a long row along a roadway - with no main community






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






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






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






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






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






21. Has the highest amount of species diversity






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






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






24. Contamination of land - water - or air






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






26. Using public transportation






27. Increase the stability of an ecosystem






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






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






30. Rising sea level






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






32. Pollution from a factory near your school






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






34. A behavior or physical characteristic that allows an organism to live successfully in its environment






35. Anything in the environment that is used by people is called a natural resource






36. Leaving a population






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






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






39. Provide wood






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






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






42. By increasing the need for people to drive






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






44. Illegal killing or removal of wildlife from their habitats






45. This draws people from urban areas to rural areas






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






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






48. A consumer that eats both plants and animals






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






50. Making direct measurements