If fossils of a water animal or plant are found in a place then that place used to be covered by water in the past.
Fish are a diverse group of animals that live and breathe in water.
If fossils of a fish are found in a place then that place used to be covered by water in the past.
If fossils of a fish are found in a place then that place used to be covered by what in the past.
[A] oceans
[B] wetland
[C] rivers
[D] water
[E] streams
[F] trees
[G] fog
[H] vegetation