Which United States organization sets standards for green building design?
To be officially "green", a building must meet the standards of Leadership in Energy and Environmental Design (LEED), a program of the U.S. Green Building Council.
Buildings certified by Leadership in Energy and Environmental Design (LEED) promote _____ standards of "greenness."
Buildings certified by Leadership in Energy and Environmental Design (LEED) promote five standards of "greenness:" water efficiency, energy and atmosphere, sustainable sites, materials and resources and interior air quality.
Which of the following is an example of basic green technology?
You don't have to be cutting-edge to incorporate principles of green technology into your home. Just add some large windows to your south-facing living room or face your porch due east to capture the morning sun .
In modular, or prefab, manufacturing, sections of a house are produced:
In modular, or prefab, manufacturing, sections of a house are produced in a factory, then moved to the home's site where they are assembled.
Papercrete is a renewable building material made from:
Papercrete is a renewable building material made from a mixture of repulped paper, Portland concrete and sand.
Which of the following sustainable building materials were popular in past centuries?
Some older, sustainable building materials making a comeback in the 21st century are bamboo, adobe and cob. Adobe is made from earth dried into bricks and cob is a mixture of straw and clay.
Builders in the American _____ are experimenting with earthbags as building materials.
Builders in the American Southwest are trying earthbags as building materials. These are polypropylene bags filled with dirt, straw or crushed rock that are formed into walls and then covered with plaster.
What is the major drawback of a hi-tech photovoltaic (PV) system that harnesses the sun's power and turns it into electric current?
The cost of a high-tech photovoltaic (PV) system that harnesses the sun's power and turns it into electric current is expensive -- as much as four times as high per kilowatt hour as the cost of getting electricity from a utility company.
What do we call roofs that use plants to provide insulation and noise absorption?
For a great way to beautify your roof and get green benefits as well, try a green roof or living wall. They help cut down on noise pollution and add an extra layer of insulation to your home.
Placing your house on a north/south axis so it receives sunlight between 8 a.m. and 3 p.m. during the winter allows you to achieve energy efficient results using basic principles of design.
What's a big disadvantage of having an energy-efficient home?
Since energy-efficient homes don't allow for an exchange of air from inside to outside, indoor air pollution tends to be high.
What's the best way to improve the air quality in your home?
To improve the air quality in your home, install ceiling and attic fans, open your windows and invest in a high-tech ventilation system.
What's a great way to save on lighting bills?
A bit of good planning goes a long way to saving you money on your electric bill. Include well-placed windows and skylights in your building or renovation plan that will let in lots of natural light.
LEDs (light emitting diodes) cost _____ times the price of compact fluorescent light (CFL) bulbs.
Though at the present time LEDs (light emitting diodes) cost three times the price of compact fluorescent light (CFL) bulbs, their price is expected to fall, providing consumers with an alternative to CFLs.
A non-polluting home wind power system can convert _____ into electricity.
In a home wind power system, turbines at the top of tall towers collect kinetic energy when the wind blows and converts it into electricity.
A wind turbine can lower your home power bill by as much as _____ percent.
Not only can a wind turbine lower your home power bill by as much as 50 to 90 percent, you may be able to sell extra electricity back to the utility company.
Where are you most likely to find wind turbines?
In the past, you would expect to find wind turbines that generate electricity mainly in rural areas, but as systems become more compact urban and suburban consumers are showing interest.
_____ energy takes advantage of the Earth's stored heat to produce energy.
Geothermal energy takes advantage of the Earth's stored heat to produce energy. New technology has expanded our capacity to do so and individual systems that generate electricity using geothermal energy are in the works.
_____ water is water that has already been used once in your home.
Gray water is water that has already been used once in your home. Though environmentally sound, reuse of gray water is illegal in many states because of the potential to contaminate groundwater with bacteria.
Why are very few systems to sanitize household gray water in use in the United States?
Though there are high-tech residential systems that filter gray water to remove germs and bacteria, they are quite expensive and highly regulated by the government.
Simple green technologies have been incorporated into home design for centuries, but in the 21st century, cutting-edge green technologies are the way to go. Some are already available to everyone, whereas some are still in the planning stages. If you're interested in making your future a greener one, take our quiz to learn about the latest in green developments.
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