The area you are referring to is called a watershed or a divide. It is a boundary separating the flow of rivers towards different sides of a continent. The size of the watershed can vary depending on the topography and geography of the region.
Watersheds are influenced by the topography of an area because the shape of the land determines where water will flow. Topography influences the direction and speed of water runoff, which can affect the size and boundaries of a watershed. Steep slopes can lead to rapid runoff, while flat terrain may result in slower water flow and larger watersheds.
James River Watershed
Hole or pipe size is not the only factor that determines flow of cubic feet per minute. The other factors are presssure and resistance.
The smallest watershed in Virginia is likely to be a small stream or creek that drains a very small area of land. These small watersheds may not be officially named or mapped, as they are not significant in terms of size or water flow.
The most important measure of the size of a river is the "size of its watershed"
The size of the normal force and coefficient of friction determines the size of frictional force.
The texture or particle size of soil determines its permeability (how well water can flow through it), its ability to retain nutrients, and its drainage properties. Soils with different textures will have varying capacities to support plant growth and overall ecosystem function.
The rate at which magma cools determines the size of the mineral crystal.
The size determines on the schools size
The land area that contributes water to a stream is known as its watershed or catchment area. This area collects rainfall and other sources of water, which then flow into the stream through surface runoff or groundwater discharge. The health and size of the watershed can significantly impact the quantity and quality of water in the stream.
A watershed is an area of land where all the water drains into a common outlet, such as a stream, river, or lake. It is defined by the topography of the land, with higher elevations forming the boundaries of the watershed. The physical characteristics of a watershed can include its size, shape, slope, soil type, vegetation cover, and land use activities.