Concrete
Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance,…
Brick and tile
Brick and tile, structural clay products, manufactured as standard units, used in building construction.…
Uses
Marbles are used principally for buildings and monuments, interior decoration, statuary, table tops, and novelties. Colour…
Building material
Asbestos Asbestos, any of several minerals that readily separate into long, flexible…
Origins of agriculture
Origins of agriculture, the active production of useful plants or animals in ecosystems that…
Igloo
Igloo, also spelled iglu, also called aputiak, temporary winter home or hunting-ground dwelling of…
