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






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






3. Land that is sparsely populated and has few buildings or roads






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






5. When fish are caught faster than they can breed - causing the populatio to decrease






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






7. Shift of population from countryside to cities






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






9. Moving into a population






10. Has the highest amount of species diversity






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






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






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






14. An organism that is killed and eaten by another organism






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






16. Contamination of land - water - or air






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






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






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






20. Making direct measurements






21. The pattern of overlapping food chains in an ecosystem






22. Chemicals that causes harm to embryos and fetuses






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






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






25. This draws people from urban areas to rural areas






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






27. Amount of land each person uses






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






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






30. A nonliving part of an organism's habitat






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






32. A species that is at risk of extinction






33. A species that influences the survival of many others in an ecosystem






34. The largest population that an area can support






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






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






37. A consumer that eats only animals






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






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






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






41. The highest level of biodiversity






42. The practice of protecting the environment






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






44. Manage - protect and reintroduce threatened and endangered species






45. Bumps on the roots of certain plants






46. Taking in carbon dioxide from the atmosphere during photosynthesis






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






48. By increasing the need for people to drive






49. Using public transportation






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