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DSST Environmental Sciences Vocab

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. The number of different species in an area






2. Farmers who raise food and animals mainly to feed their own families






3. Water stored in underground layers of soil and rock






4. Heat from the Earth's interior






5. The continuous process by which water moves from Earth's surface to the atmosphere and back






6. Anything that harms an organism






7. An energy rich substance (such as coal - oil - or natural gas) formed from the remains of organisms






8. An organism that breaks down wastes and dead organisms






9. The typical weather pattern in an area over a long period of time






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






11. Evaluation of the short-term and long-term risks associated with a particular activity or hazard






12. A graph that uses dots to compare rate of change over time






13. A measure of human demand on the Earth's ecosystems






14. Beginning of urban cities - switch from man power to fossil fuels - machinery and factories are prevalent






15. The pattern of overlapping food chains in an ecosystem.






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






17. The variable that you manipulate






18. Capable of being broken down by bacteria or other decomposers






19. A consumer that eats both plants and animals






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






21. Something that does not completely break down into the soil






22. Organism that is killed






23. Anything in the environment that is used by people






24. In an experiment - the group of participants that recieves the manipulation






25. A higer demand of that limited product the the price goes up






26. Any form of water that falls to the Earth's surface






27. People who survive by searching for wild plants and animals; always move in small groups






28. The degree of hotness or coldness of a body or environment






29. The issue where humans don't take care of the Earth.






30. The practice of growing - breeding - and caring for plants and animals that are used for food - clothing - transportation - and other uses






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






32. Leaving a population






33. A living part of an organism's habitat






34. Flaw in design of procedure






35. A consumer that eats only animals






36. Struggle between organisms to survive in a habitat with limited resources






37. Organism that does the killing






38. A graph that uses line segments to show changes that occur over time






39. Resources supplied by nature






40. The movement or organisms from one place to another






41. The time when human begins first domesticated plants and animals and no longer relied entirely on hunting and gathering.






42. The organism that benefits by living on or in a host






43. A graph that highlights segments of a circle to show simple distribution patterns






44. Something that breaks down into soil






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






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






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






48. The largest population that an area can support






49. Moving into a population






50. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death






Can you answer 50 questions in 15 minutes?



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