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






2. Cooking oil - fuel - and medicines






3. A consumer that eats only animals






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






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






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






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






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






9. Manage - protect and reintroduce threatened and endangered species






10. Soil - fresh water - wild animals - and timber






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






12. Contamination of land - water - or air






13. A large area heavily populated like Miami - Florida or Toledo - Ohio






14. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






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






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






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






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






21. A consumer that eats both plants and animals






22. A species that is at risk of extinction






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






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






25. A living part of an organism's habitat






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






27. Organism that carries pathogens






28. The amount of carbon dioxide emissions for which an individual or group is responsible






29. Fires that are set by humans






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






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






32. Rising sea level






33. Building up not out






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






35. Are carefully controlled






36. The largest population that an area can support






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






38. Bumps on the roots of certain plants






39. Help improve the standard of living for residents






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






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






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






43. Burning fossil fuels






44. A consumer that eats only plants






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






46. Using public transportation






47. Increase the stability of an ecosystem






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






49. Illegal killing or removal of wildlife from their habitats






50. 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