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






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






3. Burning fossil fuels






4. Watering crops


5. Habitat change and fragmentation






6. An organism that can make its own food






7. Provide wood






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






9. 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






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






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






12. A consumer that eats only plants






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






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






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






16. Manage - protect and reintroduce threatened and endangered species






17. A species that is at risk of extinction






18. Fires that are set by humans






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






20. The mating of animals in zoos or wildlife preserves






21. Cooking oil - fuel - and medicines






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






23. A living part of an organism's habitat






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






25. Have a greater sensitivity to environmental hazards than any other group






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






27. Leaving a population






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






29. Chemicals that causes harm to embryos and fetuses






30. One way zoos and aquariums help increase wildlife populations






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






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






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






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






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






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






37. All the members of one species in a particular area






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






39. Increase the stability of an ecosystem






40. Any substance that poses a chemical hazard






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






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






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






44. Moving into a population






45. Sex - weight - and health issues






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






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






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






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






50. Bumps on the roots of certain plants