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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. Wastewater from toilets and urinals; definitions vary - and wastewater from kitchen sinks (perhaps differentiated by the use of a garbage disposal - showers - or bathtubs is considered blackwater under some state or local codes.

2. Water that meets or exceeds the EPA's drinking water quality standards and is approved for human consumption by the state or local authorities having jurisdiction; it may be supplied from wells or municipal water systems.

3. Native plants occur naturally in a given location and ecosystem. Adapted plants are not native to a location but grow reliably with minimal attention from humans. Using native and adapted plants can reduce the amount of water required for irrigation

4. An analysis of the environmental aspects and potential impacts associated with a product - process - or service.

5. Waste and recyclables generated from construction and from renovation - demolition - or deconstruction of existing structures. It does not include land-clearing debris - such as soil - vegetation - and rocks.

6. Meeting the needs of the present without compromising the ability of future generations to meet their own needs. (Brundtland Commission)

7. Solid particles or liquid droplets in the atmosphere. The chemical composition of particulates varies - depending on location and time of year. Sources include dust - emissions from industrial processes - combustion products from the burning of wood

8. A tradable commodity representing proof that a unit of electricity was generated from a renewable energy resource. RECs are sold separately from the electricity itself and thus allow the purchase of green power by a user of conventionally generated e

9. Construction items recovered from existing buildings or construction sites and reused. Common salvaged materials include structural beams and posts - flooring - doors - cabinetry - brick - and decorative items.

10. Previously used or developed land that may be contaminated with hazardous waste or pollution. Once any environmental damage has been re-mediated - the land can be reused. Redevelopment on brownfields provides an important opportunity to restore degra

11. The process of verifying and documenting that a building and all of its systems and assemblies are planned - designed - installed - tested - operated - and maintained to meet the owner's project requirements.

12. A document that details the commissioning program overview - identification of the commissioning team - and description of the commissioning process activities.

13. Precipitation captured and used for indoor needs - irrigation - or both.

14. A voluntary - consensus-based - market-driven building rating system based on existing - proven technology. The LEED Green Building Rating System represents USGBC's effort to provide a national benchmark for green buildings. Through its use as a desi

15. The amount of heat required to raise the temperature of one pound of liquid water from 60 to 61 degrees Fahrenheit. This standard measure of energy is used to describe the energy content of fuels and compare energy use.

16. Long-term maintenance of ecosystem components and functions for future generations. (EPA)

17. All the individuals involved in a building project from early in the design process - including the design professionals - the owner's representatives - and teh general contractor and subcontractors.

18. The installed lighting power per unit area.

19. Wood that has been issued a certificate from an independent organization with developed standards of good forest management. This certificate verifies that wood products come from responsibly managed forests.

20. A stormwater management feature consisting of an excavated depression and vegetation that collects and filters runoff and reduce peak discharge rates.

21. A rating that indicates the efficiency of air filters in the mechanical system. MERV ratings range from 1 (very low efficiency) to 16 (very high efficiency).

22. The absorption of heat by hardscapes - such as dark - nonreflective pavement and buildings - and its radiation to surrounding areas. Particularly in urban areas - other sources may include vehicle exhaust - air-conditioners - and street equipment; re

23. The percentage of occupants who have direct control over temperature - airflow - and lighting in their spaces.

24. A material - other than the principal product - generated as a consequence of an industrial process or as a breakdown product in a living system. (EPA)

25. The primary goal of each prerequisite or credit.

26. The percentage of the surface area of a paving material that is open and allows moisture to pass through the material and soak into the ground below.

27. The amount of carbon compounds that participate in atmospheric photochemical reactions and vaporize (become a gas) at normal room temperatures - measured in grams per liter. VOCs off-gas from many materials - including adhesives - sealants - paints -

28. Management of a forest to produce in perpetuity a high-level annual or regular periodic output - through a balance between increment and cutting. (Society of American Foresters)

29. The total square footage of all buildings within a particular area - measured in square feet per acre or units per acre.

30. The percentage of material in a product that is recycled from the manufacturing waste stream (preconsumer waste) or the consumer waste stream (postconsumer waste) and used to make new materials. For LEED - recycled content is typically expressed as a

31. Management of forest resources to meet the long-term forest product needs of humans while maintaining the biodiversity of forested landscapes. The primary goal is to restore - enhance - and sustain a full range of forest values - including economic -

32. The variety of life in all forms - levels - and combinations - including ecosystem diversity - species diversity - and genetic diversity.

33. An optional LEED Green Building Rating System component whose achievement results in the earning of points toward certification.

34. The process of reducing peak-period vehicle trips.

35. The amount of water consumed by flush fixtures (water closets - or toilets - and urinals). The baseline flush rate for water closets is 1.6 gpf - and for urinals - 1.0 gpf (EPAct 1992)

36. The percentage of material in a product that was consumer waste. The recycled material was generated by household - commercial - industrial - or institutional end users and can no longer be used for its intended purpose. This includes returns of mate

37. Equipment - distribution systems - and terminals that provide the processes of heating - ventilating - or air-conditioning. (ASHRAE Standard 90.1-2007)

38. The emission of volatile organic compounds from synthetic and natural products.

39. A measure of how well a material rejects solar heat; the index ranges from 0 (least reflective) to 100 (most reflective). Using "cooler" materials helps prevent the urban heat island effect (the absorption of heat by roofs and pavement and its radiat

40. Any substance introduced into the environment that harms the usefulness of a resource or the health of humans - animals - or ecosystems. (EPA) Air pollutants include emissions of carbon dioxide (CO2) - sulfur dioxide (SO2) - nitrogen oxides (NOX) - m

41. Resources that are not depleted by use. Examples include energy from the sun - wind - and small (low-impact) hydropower - plus geothermal energy and wave and tidal systems. Ways to capture energy from the sun include photovoltaic - solar thermal - an

42. The amount of building materials returned to active use (in the same or a related capacity as their original use) - expressed as a percentage of the total materials cost of a building. The salvaged materials are incorporated into the new building - t

43. Water from precipitation that flows over surfaces into sewer systems or receiving water bodies. All precipitation that leaves project site boundaries on the surface is considered stormwater runoff.

44. A landscaping method that makes routine irrigation unnecessary by using drought-adaptable and low-water plants - as well as soil amendments such as compost and mulches to reduce evaporation.

45. Previously undeveloped land with soil suitable for cultivation. Avoiding development on prime farmland helps protect agricultural lands - which are needed for food production.

46. A measure of the amount of illumination falling on a surface. A footcandle is equal to one lumen per square foot. Minimizing the number of footcandles of site lighting helps reduce light pollution and protect dark skies and nocturnal animals.

47. Energy consumption divided by the number of square feet in a building - often expressed as British thermal units (Btus) per square foot or as kilowatt-hours of electricity per square foot per year (kWh/sf/yr)

48. A committee consisting of industry experts who assist in interpreting credits and developing technical improvements to the LEED Green Building Rating System.

49. The area on a project site that is used by the building structure - defined by the perimeter of the building plan. Parking lots - landscapes - and other nonbuilding facilities are not included in the building footprint.

50. A small fluorescent lamp - used as a more efficient alternative to incandescent lighting; also called a PL - twin-tube - or biax lamp. (EPA)