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Earth-sheltered homes bring us closer to nature. [Like|Unlike|Liking|Dislike]traditional houses, [a|that|this|these]dwellings are built under the ground. They can easily be made in hilly areas. The basic idea behind the construction of [so|so a|such a|such]houses is that they are made to be environmentally friendly. Their designs are usually very organic to the nature. The early earth-sheltered houses which were initially built [lack|lacked|lacking|to lack]windows. Modern day homes of that kind have windows as well [as|than|that|then]any other facilities that the people [live|to live|living|are living]there might require. Earth-sheltered homes are one of the greenest housing designs that combines Mother Nature with eco-friendly building materials and lifestyle.