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






2. The mating of animals in zoos or wildlife preserves






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






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






5. Leaving a population






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






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






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






9. Contamination of land - water - or air






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






11. Fires that are set by humans






12. A consumer that eats both plants and animals






13. Deals with biological hazards






14. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






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






17. An organism that can make its own food






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






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






20. Chemicals that cause cancer






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






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






23. The pattern of overlapping food chains in an ecosystem






24. A consumer that eats only plants






25. Bumps on the roots of certain plants






26. Any substance that poses a chemical hazard






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






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






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






30. Moving into a population






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






32. Manage - protect and reintroduce threatened and endangered species






33. Burning fossil fuels






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






35. Increase the stability of an ecosystem






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






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






38. The number of different species in an area






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






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






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






42. Making direct measurements






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






44. Shift of population from countryside to cities






45. The probability that a hazard will cause a harmful response






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






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






48. Organism that carries pathogens






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






50. The largest population that an area can support