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. Chemicals that cause cancer






2. Habitat change and fragmentation






3. Fires that are set by humans






4. Causes a cooling effect

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5. Pollution from a factory near your school






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






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






8. Contamination of land - water - or air






9. Rising sea level






10. The pattern of overlapping food chains in an ecosystem






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






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






13. Deals with biological hazards






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






15. Are carefully controlled






16. Resulted in suppression of all forest fires

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17. Have a greater sensitivity to environmental hazards than any other group






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






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






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






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






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






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






24. A consumer that eats only animals






25. One way zoos and aquariums help increase wildlife populations






26. A nonliving part of an organism's habitat






27. A living part of an organism's habitat






28. This draws people from urban areas to rural areas






29. Soil - fresh water - wild animals - and timber






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






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






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






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






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






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






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






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






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






39. Increase the stability of an ecosystem






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






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






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






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






44. Help improve the standard of living for residents






45. Using public transportation






46. The highest level of biodiversity






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






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






49. Cooking oil - fuel - and medicines






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