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 form of transportation that uses the most energy per passenger mile






2. The probability that a hazard will cause a harmful response






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






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






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






6. Increase the stability of an ecosystem






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






8. Using public transportation






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






10. Making direct measurements






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






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






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






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






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






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






17. Provide wood






18. Deals with biological hazards






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






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






21. Habitat change and fragmentation






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






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






24. The mating of animals in zoos or wildlife preserves






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






26. Fires that are set by humans






27. Has the highest amount of species diversity






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






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






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






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






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






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






34. Help improve the standard of living for residents






35. Leaving a population






36. Illegal killing or removal of wildlife from their habitats






37. Land that is sparsely populated and has few buildings or roads






38. By increasing the need for people to drive






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






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






41. The amount of replacement is equal to the amount harvested






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






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






44. Burning fossil fuels






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






46. When fish are caught faster than they can breed - causing the populatio to decrease






47. Organism that carries pathogens






48. Pollution from a factory near your school






49. Are carefully controlled






50. Cooking oil - fuel - and medicines