9) The Chesapeake Bay, a large estuary that lines the coast of Virginia and Maryland, was formed 35 million years ago.
The landscape was created by a meteor impact event around 35 million years ago and the crater filled with water
millions of years later as sea levels rose. Which of these pieces of evidence best supports the theory that a meteor
impact event formed the Chesapeake Bay area?
A)
A layer of reddish iron deposits exist in layers older than 35 million years.
B)
A layer of iridium and shocked quartz is present in sedimentary layers from
35 million years ago
C)
Uranium in the sediment layers older than 35 million years are emitting
low levels of radiation
D)
Marine fossils present prior to 35 million years ago are not found in
sediment layers more recent than that