In which of the following stream environments were the sediments composing sedimentary rock specimen #13 most likely to have been deposited? Select one:

a. mountain streambed

b. floodplain

c. levee

d. delta

b. floodplain

Explanation:

A flood plain is a plain which is generally flooded by the river or the stream and it streamed from the banks of its channel and at the base of the valley walls. It has a high discharge of the sediments from the sedimentary rocks and that are deposited a the valley floors. It is formed by the meanders of the river sideways as it travels down streams and it generally consists of the unconsolidated sediments and has accumulations of the and silt clay and the gravel.