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. Soil - fresh water - wild animals - and timber






2. Rising sea level






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






4. Increase the stability of an ecosystem






5. Has the highest amount of species diversity






6. A living part of an organism's habitat






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






8. Cooking oil - fuel - and medicines






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






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






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






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






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






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






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






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






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






18. Illegal killing or removal of wildlife from their habitats






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






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






21. Making direct measurements






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






23. A consumer that eats both plants and animals






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






25. A group of land ecosystems with similar climates and organisms






26. Provide wood






27. Can result in a decrease of property damage






28. Building up not out






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






30. An organism that breaks down wastes and dead organisms






31. Sikhote-Alin mountains and the Siberian tigers living there are separated from other mountains by this






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






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






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






35. An organism that is killed and eaten by another organism






36. Using public transportation






37. By increasing the need for people to drive






38. Leaving a population






39. Contamination of land - water - or air






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






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






42. The highest level of biodiversity






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






44. Shift of population from countryside to cities






45. A consumer that eats only plants






46. Taking in carbon dioxide from the atmosphere during photosynthesis






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






48. Burning fossil fuels






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






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