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






2. Using public transportation






3. The practice of protecting the environment






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






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






6. Cooking oil - fuel - and medicines






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






8. The largest population that an area can support






9. Resulted in suppression of all forest fires

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






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






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






13. Organism that carries pathogens






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






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






16. By increasing the need for people to drive






17. An organism that can make its own food






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






19. Increase the stability of an ecosystem






20. Shift of population from countryside to cities






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






22. Chemicals that causes harm to embryos and fetuses






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






24. Provide wood






25. One way zoos and aquariums help increase wildlife populations






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






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






28. Making direct measurements






29. Pollution from a factory near your school






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






31. The loss of a natural habitat






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






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






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






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






36. Illegal killing or removal of wildlife from their habitats






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






38. Has the highest amount of species diversity






39. Burning fossil fuels






40. Bumps on the roots of certain plants






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






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






43. Can result in a decrease of property damage






44. Habitat change and fragmentation






45. An organism that breaks down wastes and dead organisms






46. The number of different species in an area






47. The pattern of overlapping food chains in an ecosystem






48. Are carefully controlled






49. A nonliving part of an organism's habitat






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