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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. An international protocol designed to stabilize global warming.






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






3. The spraying of pesticides to prevent a pest problem before it happens.






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






5. A greenhouse gas which also plays a key role in regulating ozone levels.






6. Consumers which eat both plants and animals.






7. A forest near the equator with heavy rainfall and a great diversity of plant and animal life. Although a mere 2% of the earth is covered with these forests - they contain 50-80% of earth's land species.






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






9. Modern man.






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






11. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.






12. The process of planting trees in between other crops.






13. Organisms with a nucleus.






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






15. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.






16. The position of an organism on the food chain.






17. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.






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






19. The study of the interaction between organisms and their environment.






20. Animals which eat leaves and shoots.






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






22. The rate at which producers create organic material.






23. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.






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






25. An extinct hominid species believed to exhibit the first example of full-time bipedalism.






26. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.






27. A philosophy that extends ethics to non-humans. Under this system - animals - plants - and other aspects of the environment are seen as being deserving of justice and consideration.






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






29. Animals which eat grass and roots.






30. The process by which a new species is created. This process generally requires geographic isolation to prevent interbreeding between the newly emerging species and the parent species.






31. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.






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






33. Growing more than one crop at a time.






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






35. The process of surface water entering the soil. This ensures that plants have adequate access to water.






36. Organisms which thrive in low nutrient environments and usually have slow growth rates.






37. The infiltration of harmful chemicals - particles - or biological matter into the atmosphere which endanger living organisms. Pollutants include sulfur and nitrogen oxides - ammonia - and chlorofluorocarbons. Although there are natural sources for th






38. A transitional area between two different ecosystems.






39. Biomes with less than 10 inches of rain a year. Foliage is scarce in these areas - and remaining plants and animals work hard to conserve the little water they receive.






40. A community of similar living organisms largely affected by the area's climate.






41. Political organizations not affiliated with the government which try to bring about social change.






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






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






44. 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.






45. Surface run-off caused by melted snow.






46. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.






47. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.






48. Single-celled organisms which lack a nucleus.






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






50. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.







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