Clean River Flow Winter Reflection Royalty-Free Stock Image

The river is one of the important parts for humans that cannot be separated from everyday life. Rivers accompany our lives, both in rural areas, mountains, and urban areas. Rivers can be interpreted as natural channels that open above the surface of the earth to collect water. The natural channel collects water from the upstream to the downstream and into the estuary. Rivers become natural or artificial containers or channels originating from springs flowing over the surface of the earth. Then the flow of river water will gradually increase, merging with many other rivers. The river consists of three parts of environmental conditions, namely upstream, downstream, and river mouth. The three parts have different water quality. The upstream is known for its clearer water quality.