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






3. Using public transportation






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






5. Water vapor and carbon dioxide that trap heat near the earth






6. Making direct measurements






7. Bumps on the roots of certain plants






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






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






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






11. The largest population that an area can support






12. Leaving a population






13. Has the highest amount of species diversity






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






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






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






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






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






19. A species that is at risk of extinction






20. An organism that breaks down wastes and dead organisms






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






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






23. The loss of a natural habitat






24. A consumer that eats only animals






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






26. The mating of animals in zoos or wildlife preserves






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






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






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






30. Businesses are arranged in a long row along a roadway - with no main community






31. The struggle between organisms to survive as they attempt to use the same limited resource






32. Moving into a population






33. Building up not out






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






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






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






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






38. Can result in a decrease of property damage






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






40. Sex - weight - and health issues






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






42. Habitat change and fragmentation






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






44. This draws people from urban areas to rural areas






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






46. By increasing the need for people to drive






47. Provide wood






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






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






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






Can you answer 50 questions in 15 minutes?



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