An abstraction of the real world that is used to depict, analyze, store, and communicate spatially organized information about physical and cultural phenomena.
A road map shows major and minor highways, plus cities and towns. This type of map is used by road travelers, and often shows other information useful for travelers, including ...
The periodic rise and fall of sea level due to the gravitational pull of the sun and moon. The tidal range will be determined by the relative positions of these two bodies which ...
measures used to reduce the frequency and the magnitude of flooding. Two approaches: Hard engineering projects which build up banks, straighten and deepen channels, divert ...
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