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






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






4. Amount of land each person uses






5. Building up not out






6. This draws people from urban areas to rural areas






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






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






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






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






11. Moving into a population






12. Process of measuring the chance that an environmental hazard will cause harm






13. Illegal killing or removal of wildlife from their habitats






14. Energy from the sun would be reflected back into space






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






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






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






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






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






20. Rising sea level






21. Pollution from a factory near your school






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






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






24. The practice of protecting the environment






25. The number of different species in an area






26. Habitat change and fragmentation






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






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






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






30. A consumer that eats both plants and animals






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






32. The largest population that an area can support






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






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






35. Help improve the standard of living for residents






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






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






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






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






40. Chemicals that cause cancer






41. A consumer that eats only animals






42. Fires that are set by humans






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






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






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






46. The highest level of biodiversity






47. Leaving a population






48. Increase the stability of an ecosystem






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






50. Resulted in suppression of all forest fires