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 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






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






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






4. Contamination of land - water - or air






5. A relationship in which one organism lives on or in a host and harms it






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






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






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






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






10. The loss of a natural habitat






11. An organism that can make its own food






12. A natural pattern in which species diversity generally increases toward the equator






13. Any substance that poses a chemical hazard






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






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






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






17. Are carefully controlled






18. A living part of an organism's habitat






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






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






21. The pattern of overlapping food chains in an ecosystem






22. A consumer that eats both plants and animals






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






24. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






25. Rising sea level






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






27. Has the highest amount of species diversity






28. Help improve the standard of living for residents






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






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






31. Deals with biological hazards






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






33. Chemicals that causes harm to embryos and fetuses






34. Burning fossil fuels






35. Chemicals that cause cancer






36. Organism that carries pathogens






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






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






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






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






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






42. Moving into a population






43. All the members of one species in a particular area






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






45. Can result in a decrease of property damage






46. Pollution from a factory near your school






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






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






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






50. A nonliving part of an organism's habitat