GEOLOGY

Detailed explanation-1: -Gravity moves water through the watershed from higher to lower areas. A watershed includes living components or biotic factors such as people, wildlife, plants, and insects; as well as non-living components or abiotic factors, including sunlight, oxygen, temperature, and soil.

Detailed explanation-2: -Precipitation: The greatest factor controlling streamflow, by far, is the amount of precipitation that falls in the watershed as rain or snow. However, not all precipitation that falls in a watershed flows out, and a stream will often continue to flow where there is no direct runoff from recent precipitation.

Detailed explanation-3: -These factors include the size of the drainage area (or watershed), climate, land use/land cover, soil type, and the topography of the watershed.

Detailed explanation-4: -Climate, geology, topography, hydrology, soils, land use and other factors influence watersheds and the streams that flow through them.