You are presented with the question "What type of material is a fossil formed?" and the following answer choices: 
- shells
 - coral reefs
 - In ice
 - On a leaf
 - unique
 - segmented
 - On grass
 - In sediment

Now knowing that 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 and most fossils are formed when sediment is deposited by wind or water, choose the best answer.


 

        In sediment 