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. Species that are carried to a new location by people






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






3. A close relationship between two species that benefits at least one of the species






4. Moving into a population






5. One way zoos and aquariums help increase wildlife populations






6. Deals with biological hazards






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






8. The largest population that an area can support






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






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






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






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






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






14. By increasing the need for people to drive






15. The mating of animals in zoos or wildlife preserves






16. Chemicals that causes harm to embryos and fetuses






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






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






19. Chemicals that cause cancer






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






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






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






23. Manage - protect and reintroduce threatened and endangered species






24. Provide wood






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






26. Habitat change and fragmentation






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






28. Any substance that poses a chemical hazard






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






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






31. Taking in carbon dioxide from the atmosphere during photosynthesis






32. Using public transportation






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






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






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






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






37. Contamination of land - water - or air






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






39. Burning fossil fuels






40. Illegal killing or removal of wildlife from their habitats






41. Organism that carries pathogens






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






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






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






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






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






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






48. The highest level of biodiversity






49. This draws people from urban areas to rural areas






50. Can result in a decrease of property damage