Fact 1: 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.

Fact 2: Fish are a diverse group of animals that live and breathe in water.

Given the two facts above, answer the question "If fossils of a fish are found in a place then that place used to be covered by what in the past." with the following options: 
- oceans
 - wetland
 - rivers
 - water
 - streams
 - trees
 - fog
 - vegetation


 

    water     