Water that falls on the earth embarks on a journey that imparts on it the qualities of the land forms with which it interacts. It is both influenced and influences the watercourses through which it travels. In keeping with this, the role of water in shaping and molding watercourses will be discussed. Land use and its impact on water will also be examined. This includes the implications of agriculture and urbanization on water movement and quality within a watershed.
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