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By sp.saivlog#According to The Merriam-Webster Dictionary, nature is “a creative and controlling force in the universe,” “the external world in its entirety” or “humankind's original condition.” The New Oxford American Dictionary describes nature as “the phenomena of the physical world collectively, including plants, animals, the ...07-Aug-2018Natural channel or "natural stream" means nontidal waterways that are part of the natural topography. They usually maintain a continuous or seasonal flow during the year, and are characterized as being irregular in cross section with a meandering course.#