Tarmac is a hard black material used for roads, parade ground or anywhere, that a hard, even and durable surface is needed. It is a mixture of tar and macadam, which consists of hundreds of tiny even sized chips of granite pressed together. Macadam is named after a Scotsman, john Loudon mac Adam, who …
The depth of the oceans is measured in fathoms. A fathom is six ft. Scientists who study the oceans are called oceanographers. Since the deep ocean is cold and dark, we really know very little about it. Parts of the ocean floors have been seen through the eyes of deep-sea cameras, but it still amounts …
Ravine: Narrow, steep – sided depression in earth’s surface formed by running water larger than a gully, smaller than a canyon. Gully: Channel or small valley worn in earth by running water. Intervene: Tract of land along river. Kloof: Deep gorge or ravine (South Africa). Serac: Tall peak or mass of ice projecting upward from …
Clouds vary in shape according to their heights and temperature and they contain minute’s drops of water ice particles or a combination of both. Their formation is generally effected by the wind changes there are basically group of clouds high clouds between 17,000 and 45,000 feet cirrus, Cirri -cumtusand Stratus middle clouds between 7,000 and …
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