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. Energy from the sun would be reflected back into space






2. Building up not out






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






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






5. Shift of population from countryside to cities






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






7. Help improve the standard of living for residents






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






9. Sex - weight - and health issues






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






11. Organism that carries pathogens






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






13. Increase the stability of an ecosystem






14. The largest population that an area can support






15. The mating of animals in zoos or wildlife preserves






16. Illegal killing or removal of wildlife from their habitats






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






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






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






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






21. Sikhote-Alin mountains and the Siberian tigers living there are separated from other mountains by this






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






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






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






25. Leaving a population






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






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






28. Bumps on the roots of certain plants






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






30. A living part of an organism's habitat






31. Chemicals that causes harm to embryos and fetuses






32. A consumer that eats only plants






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






34. A species that is at risk of extinction






35. Manage - protect and reintroduce threatened and endangered species






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






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






38. This draws people from urban areas to rural areas






39. An organism that breaks down wastes and dead organisms






40. A group of land ecosystems with similar climates and organisms






41. Chemicals that cause cancer






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






43. The loss of a natural habitat






44. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






45. By increasing the need for people to drive






46. Contamination of land - water - or air






47. Making direct measurements






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






49. Deals with biological hazards






50. Burning fossil fuels