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






2. Energy from the sun would be reflected back into space






3. A living part of an organism's habitat






4. Organism that carries pathogens






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






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






7. Burning fossil fuels






8. The largest population that an area can support






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






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






11. Amount of land each person uses






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






13. A species that is at risk of extinction






14. Making direct measurements






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






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






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






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






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






20. The disappearance of a particular population from a given area - but not from the entire species globally






21. Leaving a population






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






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






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






25. Cooking oil - fuel - and medicines






26. Chemicals that causes harm to embryos and fetuses






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






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






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






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






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






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






33. Transportation systems - communications systems - water services - power supplies - and schools






34. The highest level of biodiversity






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






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






37. Increase the stability of an ecosystem






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






39. Help improve the standard of living for residents






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






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






42. Are carefully controlled






43. A consumer that eats only plants






44. Rising sea level






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






46. Provide wood






47. Contamination of land - water - or air






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






49. Moving into a population






50. 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