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 species that is at risk of extinction






2. Help improve the standard of living for residents






3. A form of decision-making concerned with the allocation and conservation of natural resources






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






5. Causes a cooling effect


6. Amount of land each person uses






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






8. Sex - weight - and health issues






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






10. The largest population that an area can support






11. Leaving a population






12. 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






13. Increase the stability of an ecosystem






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






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






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






17. Shift of population from countryside to cities






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






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






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






21. An organism that breaks down wastes and dead organisms






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






23. Organism that carries pathogens






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






25. Chemicals that causes harm to embryos and fetuses






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






27. Pollution from a factory near your school






28. Taking in carbon dioxide from the atmosphere during photosynthesis






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






30. The amount of carbon dioxide emissions for which an individual or group is responsible






31. Watering crops


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






33. Cooking oil - fuel - and medicines






34. A consumer that eats only animals






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






36. A consumer that eats only plants






37. Making direct measurements






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






39. The practice of protecting the environment






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






41. The mating of animals in zoos or wildlife preserves






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






43. The pattern of overlapping food chains in an ecosystem






44. Has the highest amount of species diversity






45. A living part of an organism's habitat






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






47. Provide wood






48. Soil - fresh water - wild animals - and timber






49. Rising sea level






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