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






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






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






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






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






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






7. Bumps on the roots of certain plants






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






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






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






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






12. This draws people from urban areas to rural areas






13. Amount of land each person uses






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






15. By increasing the need for people to drive






16. Fires that are set by humans






17. 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






18. The amount of replacement is equal to the amount harvested






19. Trees - grass - crops - wetlands - water - building and pavements






20. A consumer that eats only plants






21. A living part of an organism's habitat






22. Resulted in suppression of all forest fires

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23. Any substance that poses a chemical hazard






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






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






26. The largest population that an area can support






27. Sex - weight - and health issues






28. Cooking oil - fuel - and medicines






29. Organism that carries pathogens






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






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






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






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






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






35. Taking in carbon dioxide from the atmosphere during photosynthesis






36. A species that is at risk of extinction






37. Leaving a population






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






39. Watering crops

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






41. Are carefully controlled






42. Making direct measurements






43. Habitat change and fragmentation






44. Help improve the standard of living for residents






45. Building up not out






46. A virus or bacterium (organisms) that cause infectious diseases






47. Anything in the environment that is used by people is called a natural resource






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






49. A nonliving part of an organism's habitat






50. Chemicals that cause cancer