The point where R.Isbo meets R.Gembeh is called a confluence. A confluence is a place where two or more rivers or streams meet and flow together. At a confluence, the water from the two rivers or streams merge and flow downstream as one body of water.
Confluences are important features of rivers and streams because they can affect the water quality, ecology, and flow patterns of the rivers. They can also create unique habitats for aquatic plants and animals that depend on the specific conditions created by the merging of the two bodies of water.
In the case of R.Isbo and R.Gembeh, the confluence marks the point where the two rivers meet and merge their waters. The combined flow of the two rivers downstream can create new habitats for aquatic plants and animals, as well as influence the water quality and flow patterns of the river system as a whole.
The point where R.Isbo meets R.Gembeh is called