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. Organism that carries pathogens






2. Manage - protect and reintroduce threatened and endangered species






3. Has the highest amount of species diversity






4. Fires that are set by humans






5. The mating of animals in zoos or wildlife preserves






6. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






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






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






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






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






11. The practice of protecting the environment






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






13. Pollution from a factory near your school






14. An organism that breaks down wastes and dead organisms






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






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






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






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






19. Chemicals that causes harm to embryos and fetuses






20. Making direct measurements






21. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






24. Moving into a population






25. A relationship between two species in which both species benefit






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






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






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






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






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






31. Using public transportation






32. Building up not out






33. A consumer that eats both plants and animals






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






35. A species that is at risk of extinction






36. Provide wood






37. Concentrations of toxicants can be greatly multiplied with each step up the food chain






38. Chemicals that cause cancer






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






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






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






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






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






44. Deals with biological hazards






45. A nonliving part of an organism's habitat






46. Any substance that poses a chemical hazard






47. The process of cutting down only some trees in an area






48. Increase the stability of an ecosystem






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






50. Can result in a decrease of property damage