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. Amount of land each person uses






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






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






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






5. The number of different species in an area






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






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






8. The mating of animals in zoos or wildlife preserves






9. Pollution from a factory near your school






10. Deals with biological hazards






11. Fires that are set by humans






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






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






14. The practice of protecting the environment






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






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






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






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






19. A consumer that eats only animals






20. By increasing the need for people to drive






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






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






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






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






25. Contamination of land - water - or air






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






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






28. Causes a cooling effect

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29. Organism that carries pathogens






30. Chemicals that cause cancer






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






32. A species that is at risk of extinction






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






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






35. Illegal killing or removal of wildlife from their habitats






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






37. One way zoos and aquariums help increase wildlife populations






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






39. Resulted in suppression of all forest fires

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40. Increase the stability of an ecosystem






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






42. Has the highest amount of species diversity






43. The pattern of overlapping food chains in an ecosystem






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






45. Moving into a population






46. The loss of a natural habitat






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






48. An organism that breaks down wastes and dead organisms






49. Habitat change and fragmentation






50. A living part of an organism's habitat