How is a regular sedimentary rock formed?

Answer 1

1. The rocks that form by physical processes are those that come from the breakdown of pre-existing rocks. After the older rocks are eroded, transporting agents such as water, wind, or ice move the particles. Rocks that form from particles being physically transported are called clastic rocksRocks that form by physical processes are those that come from the breakdown of pre-existing rocks..
2. Animals and/or plants make up some rocks. These are called biogenic sedimentary rocksRocks that are made from animals and/or plants.. Think about a pile of shells that you might find on a beach. If these shells became stuck together, they would be a sedimentary rock formed from animals.
3. Crystals that crystallize out of solution form chemical sedimentary rocksRocks made from crystals that grow out of a solution.. Think about a pond of really salty water. Add a hot, dry climate to that scenario and the water goes away, but the salt (halite) stays behind.