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. An organism that obtains energy by feeding on the other organisms






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






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






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






5. Bumps on the roots of certain plants






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






7. The mating of animals in zoos or wildlife preserves






8. Any substance that poses a chemical hazard






9. Using public transportation






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






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






12. A species that is at risk of extinction






13. The highest level of biodiversity






14. A consumer that eats both plants and animals






15. The practice of protecting the environment






16. Illegal killing or removal of wildlife from their habitats






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






18. Are carefully controlled






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






20. Chemicals that cause cancer






21. Has the highest amount of species diversity






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






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






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






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






26. Rising sea level






27. Leaving a population






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






29. Chemicals that causes harm to embryos and fetuses






30. A consumer that eats only animals






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






32. Moving into a population






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






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






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






36. Organism that carries pathogens






37. Manage - protect and reintroduce threatened and endangered species






38. A consumer that eats only plants






39. Burning fossil fuels






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






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






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






43. Help improve the standard of living for residents






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






45. Provide wood






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






47. Habitat change and fragmentation






48. Fires that are set by humans






49. Concentrations of toxicants can be greatly multiplied with each step up the food chain






50. Cooking oil - fuel - and medicines