Answer :
Low ridges of flood-deposited sediment that form on both sides of a stream channel and become thinner away from the channel are called: Natural levees.
The debris that shapes a sedimentary rock is called sediment and may be composed of geological detritus (minerals) or organic detritus (organic rely). The geological detritus originated from weathering and erosion of current rocks, or from the solidification of molten lava blobs erupted via volcanoes.
Common sedimentary rocks include sandstone, limestone, and shale. these rocks regularly begin as sediments carried in rivers and deposited in lakes and oceans. while buried, the sediments lose water and become cemented to form rock.
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