Which of the following is typically characterized as a flowing body of water?

A stream is typically characterized as a flowing body of water due to its continuous movement in one direction, often fueled by gravity. Streams are formed by the accumulation of runoff from precipitation, snowmelt, and groundwater, and they travel over the landscape, carving out channels and contributing to larger bodies of water such as rivers or lakes. This movement is essential for the stream's ecosystem, as it influences factors such as nutrient cycling, habitat diversity, and the distribution of aquatic organisms.

In contrast, a reservoir is a large, usually stagnant body of water created by damming a river, which causes water to back up and form a lake-like area. Ponds are smaller bodies of water that also tend to be static, with little to no flow. Wetlands, while they can have water that moves slowly, primarily act as transitional areas between land and water, with water typically pooling rather than flowing.