The observations above support which of the following conclusions? F. When Layer 4 formed, the mountain was near a large lake.
G. When Layer 4 formed, whales, sharks, and sand dollars lived in the mountains.
H. When Layer 4 formed, an ocean covered the area where the fossils were found.
I. When Layer 4 formed, whales, sharks, lizards, toads, and rodents were in the
same food web.