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. All the members of one species in a particular area






2. A living part of an organism's habitat






3. The role of an organism in its habitat - or how it makes its living






4. Making direct measurements






5. An organism that can make its own food






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






7. The breaking of a habitat into smaller - isolated pieces






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






9. Leaving a population






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






11. A resource that is either always available or is naturally replaced in a relatively short time






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






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






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






15. Watering crops

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






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






18. Building up not out






19. Cooking oil - fuel - and medicines






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






21. A consumer that eats only animals






22. The pattern of overlapping food chains in an ecosystem






23. Illegal killing or removal of wildlife from their habitats






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






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






26. Rising sea level






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






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






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






30. The loss of a natural habitat






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






32. Amount of land each person uses






33. The largest population that an area can support






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






35. Using public transportation






36. Pollution from a factory near your school






37. Increase the stability of an ecosystem






38. Contamination of land - water - or air






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






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






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






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






43. An organism that breaks down wastes and dead organisms






44. The mating of animals in zoos or wildlife preserves






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






46. Fires that are set by humans






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






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






49. Chemicals that causes harm to embryos and fetuses






50. By increasing the need for people to drive