Respuesta :

1) Sediments are buried.
2) Increase pressure of from the weight of the overlaying material pushes the grains closer together. 
3) The volume of the sediment is reduced & fluids between the grains are also squeezed out. 
4) Leaves sandstone tightly compressed together. 

Sand is made up of very fine particles of rocks and minerals.

How is sand formed?

The erosion of rocks reduces the most common elements of the earth's crust to fine grains, generally light in color, depending on where they occur geographically.

Events in the formation of sand

  • Rock particles are transported by rivers and winds to lower places where they are deposited.

  • On their long way these particles shrink until they are the size of sand, this process of wear and transport is called erosion.

Therefore, we can conclude that sand is mainly formed by the combination of various elements of the earth's crust due to the erosion process.

Learn more about the formation of sand here: https://brainly.com/question/2644186