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The image features a diagram titled "How is a delta formed?" presenting a three-step sequential process labeled with numbered points 1 to 3. Step 1 displays a river flowing between landmasses into a large body of water, accompanied by the text: "1 Velocity slows dramatically when a river meets a large body of water." Step 2 illustrates sediment fragments appearing at the mouth of the river entering the water, labeled: "2 Because of the decrease in velocity, sediments are deposited." Step 3 shows an extensive network of branching sediment channels extending into the water body, labeled: "3 Over time, the sediments build up, forming a delta."
Given the complexity of the image, the above description may not be entirely accurate.
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The given diagram below illustrates formation of delta river. This is a gradual natural process.
Overall, the given process of formation of delta has three main steps. The river carries sediments to the sea and over time, this material forms a new area of land.
First, the river flows from mountainous and inland areas to sea and carries the materials such as sand, clay and silt that are came from rocks and soil . When the river reaches the sea, it is flow slows down and it is loses some of it’s energy which effects to the velocity. As a result, the sediments are deposited and fall to the bottom.
In the subsequent stage , the accumulated sediment is collected in this area. This process makes the river split into some distributary channels. Eventually, the river delta is formed. It has a triangle shape and contains many small islands and channels.
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