You are presented with the question "What is sedimentation caused by?" and the following answer choices: 
- salmon
 - streams
 - wind
 - storms
 - rain
 - a wave
 - erosion
 - water

Now knowing that fossils are formed when layers of sediment cover the remains of organisms over time and most fossils are preserved by the sedimentation process of water, choose the best answer.


 

        water 