Test your basic knowledge |

DSST Environmental Science - 2

Subjects : dsst, science
  • 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. An area with a large population of valuable ocean organisms

2. Amount of land each person uses

3. Taking in carbon dioxide from the atmosphere during photosynthesis

4. The pattern of overlapping food chains in an ecosystem

5. Shift of population from countryside to cities

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

7. Chemicals that cause cancer

8. Fires that are set by humans

9. Habitat change and fragmentation

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

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

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

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

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

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

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

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

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

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

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

21. Has the highest amount of species diversity

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

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

24. Contamination of land - water - or air

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

26. Using public transportation

27. Increase the stability of an ecosystem

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

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

30. Rising sea level

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

32. Pollution from a factory near your school

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

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

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

36. Leaving a population

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

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

39. Provide wood

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

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

42. By increasing the need for people to drive

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

44. Illegal killing or removal of wildlife from their habitats

45. This draws people from urban areas to rural areas

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

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

48. A consumer that eats both plants and animals

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

50. Making direct measurements