Question

Coquina is a rock made of small pieces of broken shells. Ocean waves break seashells into smaller pieces. Over time, these pieces are moved and deposited. When they stick together, they form coquina. Coquina is most likely a(n) ________.a. igneous rockb. metamorphic rockc. sedimentary rock

Answer 1

Answer:

Option (C)

Explanation:

Coquina is usually defined as a sedimentary limestone rock that is found to be present in the freshwater zones and in the coastal areas. This rock is made up of broken shells that are smaller in size. The rocks can be easily broken down by the constant flowing of sea waves.  

This rock is commonly formed in the same way as the other sedimentary rocks, i.e. it is formed by the deposition of sediments carrying these organic remains and eventually undergoes the process of compaction and lithification on the seafloor.

Thus, the correct answer is option (C).