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






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






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






4. Water vapor and carbon dioxide that trap heat near the earth






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






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






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






8. A relationship between two species in which one species benefits and the other is neither helped nor harmed






9. Pollution from a factory near your school






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






11. Organism that carries pathogens






12. Fires that are set by humans






13. Cooking oil - fuel - and medicines






14. By increasing the need for people to drive






15. Provide wood






16. A consumer that eats only plants






17. Amount of land each person uses






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






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






20. Deals with biological hazards






21. Burning fossil fuels






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






23. The practice of protecting the environment






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






25. Making direct measurements






26. The largest population that an area can support






27. Any substance that poses a chemical hazard






28. A nonliving part of an organism's habitat






29. Using public transportation






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






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






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






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






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






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






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






37. A consumer that eats both plants and animals






38. Chemicals that causes harm to embryos and fetuses






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






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






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






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






43. A resource that is either always available or is naturally replaced in a relatively short time






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






45. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






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






49. The pattern of overlapping food chains in an ecosystem






50. A species that is at risk of extinction