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 natural pattern in which species diversity generally increases toward the equator






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






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






4. The largest population that an area can support






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






6. Sex - weight - and health issues






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






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






9. Moving into a population






10. Deals with biological hazards






11. Rising sea level






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






13. Shift of population from countryside to cities






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. Has the highest amount of species diversity






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






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






18. The mating of animals in zoos or wildlife preserves






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






20. The number of different species in an area






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






22. Contamination of land - water - or air






23. Habitat change and fragmentation






24. Illegal killing or removal of wildlife from their habitats






25. A consumer that eats only animals






26. The clearing of a forest and replacing it with another land use






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






28. Making direct measurements






29. Building up not out






30. The loss of a natural habitat






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






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






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






34. Amount of land each person uses






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






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






37. A living part of an organism's habitat






38. The disappearance of a particular population from a given area - but not from the entire species globally






39. Using public transportation






40. Watering crops

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






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






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






44. By increasing the need for people to drive






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






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






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






48. Taking in carbon dioxide from the atmosphere during photosynthesis






49. A consumer that eats only plants






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