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






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






3. A species that is at risk of extinction






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






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






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






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






8. Shift of population from countryside to cities






9. This draws people from urban areas to rural areas






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






11. Leaving a population






12. Cooking oil - fuel - and medicines






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






14. Bumps on the roots of certain plants






15. Habitat change and fragmentation






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






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






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






19. Are carefully controlled






20. Causes a cooling effect

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21. Moving into a population






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






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






24. Can result in a decrease of property damage






25. The practice of protecting the environment






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






27. Illegal killing or removal of wildlife from their habitats






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






29. Sex - weight - and health issues






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






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






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






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






34. A large area heavily populated like Miami - Florida or Toledo - Ohio






35. Has the highest amount of species diversity






36. The organism that does the killing in a predation interaction






37. Making direct measurements






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






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






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






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






42. Watering crops

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43. The amount of replacement is equal to the amount harvested






44. The process of changing free nitrogen gas into a usable form






45. Organism that carries pathogens






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






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






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






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






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