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. A species that could become endangered in the near future






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






3. Burning fossil fuels






4. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






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






8. Illegal killing or removal of wildlife from their habitats






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






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






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






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






13. Organism that carries pathogens






14. Watering crops

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15. Deals with biological hazards






16. Chemicals that causes harm to embryos and fetuses






17. The number of different species in an area






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






19. Making direct measurements






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






21. A consumer that eats both plants and animals






22. A nonliving part of an organism's habitat






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






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






25. Leaving a population






26. Increase the stability of an ecosystem






27. An organism that can make its own food






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






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






30. Provide wood






31. The loss of a natural habitat






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






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






34. A consumer that eats only plants






35. Cooking oil - fuel - and medicines






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






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






38. Shift of population from countryside to cities






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






40. Using public transportation






41. Fires that are set by humans






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






43. A form of decision-making concerned with the allocation and conservation of natural resources






44. Contamination of land - water - or air






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






46. This draws people from urban areas to rural areas






47. The process of cutting down all the trees in an area at once






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






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






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