The figure below represents sedimentary layers in a single geographic location. use the diagram below to answer the question.
a)fine sands are generally deposited by wind. the absence of marine fossils and the presence of land animal fossils suggest that the area was dry, sandy land, such as a desert.
b)
graded bedding is found as a result of underwater landslides. the presence of marine fossils confirms that the area was under the sea at one time.
c)
the presence of marine fossils in a limestone confirms that this rock layer formed in an ocean.
d)
none of the above