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 relationship between two species in which both species benefit






2. Using public transportation






3. The highest level of biodiversity






4. Burning fossil fuels






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






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






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






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






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






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






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






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






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






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






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






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






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






18. When fish are caught faster than they can breed - causing the populatio to decrease






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






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






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






22. A consumer that eats only animals






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






24. Sex - weight - and health issues






25. Cooking oil - fuel - and medicines






26. The role of an organism in its habitat - or how it makes its living






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






28. Chemicals that cause cancer






29. Causes a cooling effect


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






31. Building up not out






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






33. A consumer that eats both plants and animals






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






35. The largest population that an area can support






36. This draws people from urban areas to rural areas






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






38. The number of different species in an area






39. Organism that carries pathogens






40. Has the highest amount of species diversity






41. Rising sea level






42. Habitat change and fragmentation






43. The clearing of a forest and replacing it with another land use






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






45. 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






46. A nonliving part of an organism's habitat






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






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






49. Increase the stability of an ecosystem






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