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






2. Resources supplied by nature






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






4. Possible to use again






5. The process in which the changes that make organisms better suited to their environments develop






6. The condition in which human needs are met in such a way that a human population can survive indefinitely






7. A state of poor nutrition; lacking enough calories or variety in diet






8. All the different populations that live together in an area






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






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






11. The first species to populate the area






12. A relationship in which both species benefit






13. A material that cannot be recycled or reused






14. A chart with bars






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






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






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






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






19. A resource that is able to be reused - or can be replenished quickly






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






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






22. An interaction in which one organism kills and eats another






23. The theory that increasing carbon dioxide in the atmosphere will raise Earth's average temperature






24. The number of different species in a given area






25. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






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






27. The study of the impact of humans on the environment






28. The largest population that an area can support






29. The practice of reducing energy use






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






31. When a large fraction of the resource has been used up






32. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






33. Measure of quantity of food produced on a given area of land with limited inputs of energy and resources






34. Liphids - proteins - and carbohydrates






35. Rice - corn - potatos - wheat - soy beans






36. The process by which molecules of liquid absorb energy and change to gas






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






38. An organism that obtains energy by feeding on other organisms






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






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






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






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






43. Water stored in underground layers of soil and rock






44. A relationship that involves one organism living on or inside another organism and harming it






45. The series of predictable changes that occur in a community over time






46. The organism that the parasite lives in or on






47. Countries with less productive economies and a lower quality of life






48. The study of how living and nonliving things interact






49. Leaving a population






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