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






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






3. Cooking oil - fuel - and medicines






4. Moving into a population






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






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






7. Using public transportation






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






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






10. Are carefully controlled






11. Pollution from a factory near your school






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






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






14. Anything in the environment that is used by people is called a natural resource






15. Bumps on the roots of certain plants






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






17. One way zoos and aquariums help increase wildlife populations






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






19. A consumer that eats only plants






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






21. Illegal killing or removal of wildlife from their habitats






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






23. A living part of an organism's habitat






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






25. Chemicals that cause cancer






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






27. Any substance that poses a chemical hazard






28. Deals with biological hazards






29. A form of decision-making concerned with the allocation and conservation of natural resources






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






31. Organism that carries pathogens






32. The pattern of overlapping food chains in an ecosystem






33. A nonliving part of an organism's habitat






34. Help improve the standard of living for residents






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






36. An environment that provides the things an organism needs to live - grow - and reproduce






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






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






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






40. The organism that does the killing in a predation interaction






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






42. The mating of animals in zoos or wildlife preserves






43. A close relationship between two species that benefits at least one of the species






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






45. A consumer that eats only animals






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






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






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






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






50. The number of different species in an area