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DSST Environment And Humanity

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 process of planting trees in between other crops.






2. An act which protects certain lands as national parks.






3. Animals which eat grass and roots.






4. An international convention which created the framework for protecting the ozone layer.






5. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.






6. An act created to protect endangered and threatened species.






7. Consumers which eat decomposing organic material.






8. Populations characterized by large size - long lifespan - and few offspring.






9. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.






10. The amount of pests needed before spraying pesticides is economical.






11. An influential book by Rachel Carson which helped begin the environmental movement.






12. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.






13. Modern man.






14. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.






15. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.






16. A rainforest in the temperate zone which receives heavy rainfall.






17. Organisms which produce their own food.






18. The flow of water in the water table.






19. A community of species interacting with their nonliving (abiotic) environment.






20. The process by which pollutants are carried by flowing water - such as a river.






21. A group of similar organisms capable of interbreeding.






22. Any living thing on earth.






23. An international organization designed to promote free trade between countries.






24. An act which required the EPA to set standards for drinking water.






25. Surface run-off caused by melted snow.






26. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.






27. Different species living in close contact with each other.






28. A partially enclosed part of the ocean with rivers or streams flowing into it.






29. The process of planting different plant species right next to each other to maximize one's yield.






30. A type of symbiosis where each species will benefit from interacting with the other.






31. A UN conference that addressed the growing population problem.






32. Animals which eat leaves and shoots.






33. The spraying of pesticides to keep produce from any injuries or damage.






34. A principle that states that two species competing for a single resource cannot coexist. One species will inevitably gain an advantage over the other - causing the looser either to migrate or to become extinct.






35. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.






36. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.






37. An act requiring federal agencies to detail the impact of proposed environmental policies.






38. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.






39. An act which set standards for the amount of pollution in water.






40. Evolution in one organism due to change in a related organism.






41. A shubland found primarily in the South-Western United States and Mexico. Fire plays a predominant role in the life-cycle of the plants in this area - the seeds of which will sprout only after a fire.






42. A form of management which attempts to satisfy both the needs of humans and those of wildlife in the best way possible for both parties.






43. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.






44. An extinct hominid species believed to be the last common ancestor between man and apes.






45. Also called that water cycle - this process describes the cycling of water throughout the environment. The stages of this cycle are evaporation - condensation - transportation - precipitation - infiltration and percolation - and run off.






46. An agency created to establish regulations concerning pollutants to protect humans and the environment.






47. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.






48. Average expected birth rate for 1 -000 women.






49. A forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.






50. The rate at which producers create organic material.







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