Environment, the complex of physical, chemical, and biotic factors that act upon an organism or…

Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel),…

Brick and tile, structural clay products, manufactured as standard units, used in building construction. The brick, first…

Hide, the pelt taken from a cow, steer, or bull of the bovine species, from…

Marbles are used principally for buildings and monuments, interior decoration, statuary, table tops, and novelties. Colour and appearance are…

Asbestos Asbestos, any of several minerals that readily separate into long, flexible fibres. Chrysotile, the fibrous…

Origins of agriculture, the active production of useful plants or animals in ecosystems that have been created…

Igloo, also spelled iglu, also called aputiak, temporary winter home or hunting-ground dwelling of Canadian and Greenland Inuit (Eskimos).…

Masonry Masonry, the art and craft of building and fabricating in stone, clay, brick, or concrete…

Climate, conditions of the atmosphere at a particular location over a long period of time; it is…