How does a cross bed form?
A. a gradual decrease in the strength of the current over time
B. piling of sediment down the front of a dune or ripple
C. a gradual change in the climate
D. an abrupt change in the composition of the sediment
E. two glaciers that cross
Answer: B
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Indicate whether the statement is true or false.
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Indicate whether the statement is true or false