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Practice Reading: Fill in The Blanks (Drag & Drop)
ID: #47751
Underground Houses
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Underground houses have many advantages over conventional housing. Unlike conventional homes, they can be built on surfaces and can maximize space in small areas by going below the surface. In addition, the materials excavated in construction can be used in the building process. Underground houses have less surface area so fewer building materials are used, and costs are lower. They are also wind, fire, and earthquake resistant, providing a secure and safe environment in extreme weather. One of the greatest benefits of underground living is energy . The earth's subsurface temperature remains stable, so underground dwellings benefit from geothermal mass and heat exchange, staying cool in the summer and warm in the winter. This saves around 80% in energy costs. By solar design this energy bill can be to zero, providing hot water and heat to the home all year round.
efficiency
maintenance
steep
forced
incorporating
transportation
replacing
reduced
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