You are presented with the question "How is limestone formed?" and the following answer choices: 
- In sediment
 - Deposition.
 - Metamorphic processes.
 - Igneous processes.
 - Magma processes.
 - less water
 - Water expanding
 - It expands

Now knowing that sedimentary rocks are formed by deposition and limestone is a type of sedimentary rock, choose the best answer.


 

  Deposition.       