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. Illegal killing or removal of wildlife from their habitats






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






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






4. A consumer that eats only animals






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






6. Making direct measurements






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






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






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






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






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






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






13. The largest population that an area can support






14. Are carefully controlled






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






16. Chemicals that causes harm to embryos and fetuses






17. A consumer that eats only plants






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






19. Sex - weight - and health issues






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






21. Cooking oil - fuel - and medicines






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






23. Loud noises in the air like jack hammers - loud car stereos - etc...






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






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






26. Chemicals that cause cancer






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






28. Pollution from a factory near your school






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






30. The practice of protecting the environment






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






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






33. Habitat change and fragmentation






34. Amount of land each person uses






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






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






37. One way zoos and aquariums help increase wildlife populations






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






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






40. Any substance that poses a chemical hazard






41. Provide wood






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






43. This draws people from urban areas to rural areas






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






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






46. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






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






48. Bumps on the roots of certain plants






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






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