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. Taking in carbon dioxide from the atmosphere during photosynthesis






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






3. A natural resource that is not replaced in a useful time frame






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






5. A consumer that eats both plants and animals






6. Any substance that poses a chemical hazard






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






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






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






10. Has the highest amount of species diversity






11. Building up not out






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






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






14. By increasing the need for people to drive






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






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






17. A living part of an organism's habitat






18. Causes a cooling effect

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19. Fires that are set by humans






20. The loss of a natural habitat






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






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






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






24. Pollution from a factory near your school






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






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






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






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






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






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






31. Can result in a decrease of property damage






32. Cooking oil - fuel - and medicines






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






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






35. The mating of animals in zoos or wildlife preserves






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






37. 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






38. Help improve the standard of living for residents






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






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






41. Viruses - bacteria and other organisms in the environment that harm human health






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






43. An organism that can make its own food






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






45. A consumer that eats only animals






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






47. Making direct measurements






48. Chemicals that causes harm to embryos and fetuses






49. A species that is at risk of extinction






50. Provide wood