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 carnivore that feeds on the bodies of dead organisms






2. Bumps on the roots of certain plants






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






4. A nonliving part of an organism's habitat






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






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






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






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






9. Taking in carbon dioxide from the atmosphere during photosynthesis






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






11. Making direct measurements






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






13. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






14. Amount of land each person uses






15. Moving into a population






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






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






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






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






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






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






22. Increase the stability of an ecosystem






23. Shift of population from countryside to cities






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






25. The practice of protecting the environment






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






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






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






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






30. The pattern of overlapping food chains in an ecosystem






31. Are carefully controlled






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






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






34. An organism that can make its own food






35. Loud noises in the air like jack hammers - loud car stereos - etc...






36. A consumer that eats only plants






37. Causes a cooling effect


38. Rising sea level






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






40. An organism that breaks down wastes and dead organisms






41. Burning fossil fuels






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






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






44. The highest level of biodiversity






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






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






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






48. Building up not out






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






50. One way zoos and aquariums help increase wildlife populations