Is an area where water flows by surfing with limited space may be large or small, and have a slope streams will take an object in solid condition of slurry flow from high to low because that Earth's gravity. streams are important is rivers.
Is an area where water flows by surfing with limited space may be large or small, and have a slope streams will take an object in solid condition of slurry flow from high to low because that Earth's gravity. streams are important is rivers.