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. Has the highest amount of species diversity






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






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






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






5. Pollution from a factory near your school






6. The practice of protecting the environment






7. Increase the stability of an ecosystem






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






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






10. Chemicals that causes harm to embryos and fetuses






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






12. A living part of an organism's habitat






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






14. The largest population that an area can support






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






16. An organism that breaks down wastes and dead organisms






17. Any substance that poses a chemical hazard






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






19. Bumps on the roots of certain plants






20. The highest level of biodiversity






21. An organism that obtains energy by feeding on the other organisms






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






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






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






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






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






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






28. Are carefully controlled






29. The number of different species in an area






30. Using public transportation






31. Making direct measurements






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






33. Cooking oil - fuel - and medicines






34. Watering crops


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






36. Deals with biological hazards






37. Leaving a population






38. Building up not out






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






40. 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






41. Sex - weight - and health issues






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






43. Taking in carbon dioxide from the atmosphere during photosynthesis






44. The mating of animals in zoos or wildlife preserves






45. Resulted in suppression of all forest fires


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






47. Chemical hazard that was once found in paint - young children are frequently tested for this






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






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






50. Shift of population from countryside to cities