Other factors that can change the length of a river include cycles of erosion and flooding, dams, levees, and channelization. In addition, the length of meanders can change significantly over time due to natural or artificial cutoffs, when a new channel cuts across a narrow strip of land, bypassing a large river bend.
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Step 1 (Request a cab): The first step in the business model of uber is about creating a demand. People have a smartphone app which lets them request a cab instantly or schedule it for some time later. Step 2 (Matching): As soon as the request is made, a notification about your details is sent to the nearest driver.