When rivers pick up rocks and sediment, they often hit and scrape against the river bed, wearing it away. Which of the four types of fluvial erosion is this

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The shia sect of islam is primarily different from sunni islam in the belief that the first legitimate imam following muhammad was imam ali. unlike the three caliphs that succeeded muhammad, ali was part of muhammad's clan (related to him). major shia caliphates include the fatimid and safavid caliphates.  the answer will be option c. shia read more on