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 highest level of biodiversity






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






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






4. Leaving a population






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






6. Illegal killing or removal of wildlife from their habitats






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






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






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






10. The loss of a natural habitat






11. Building up not out






12. Making direct measurements






13. Cooking oil - fuel - and medicines






14. Manage - protect and reintroduce threatened and endangered species






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






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






17. Fires that are set by humans






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






19. Are carefully controlled






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






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






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






23. A region that has many different types of organism is described as having a high level of this






24. Transportation systems - communications systems - water services - power supplies - and schools






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






26. Organism that carries pathogens






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






28. Any substance that poses a chemical hazard






29. Sex - weight - and health issues






30. Amount of land each person uses






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






32. Help improve the standard of living for residents






33. Pollution from a factory near your school






34. Chemicals that cause cancer






35. The form of transportation that uses the most energy per passenger mile






36. A living part of an organism's habitat






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






38. Bumps on the roots of certain plants






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






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






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






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






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






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






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






46. Rising sea level






47. Can result in a decrease of property damage






48. One way zoos and aquariums help increase wildlife populations






49. By increasing the need for people to drive






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