The Sun's increase in activity.
A fan-shaped deposit <em>(of sediment</em><em>)</em> at the mouth of some rivers is called b) an alluvial fan.
A <em>dune</em> is a mound of sand shaped by wind.
A <em>delta</em> is a sort of "tree" of splitting rivers at the mouth of a river.
Ages because they indicate it the same way they do trees
hope this helped :)
N just like yyyyya and said that that was the same
