Pick up the correct statement from the following: A. Sand consists of coarse particles of silica formed due to the disintegration of rocks B. The grains of sand are not affected by frost C. Sand beds are permeable and do not allow water to rise up between pores due to capillary action D. All the above

Sand consists of coarse particles of silica formed due to the disintegration of rocks
The grains of sand are not affected by frost
Sand beds are permeable and do not allow water to rise up between pores due to capillary action
All the above

The correct answer is D. All of the above are correct statements about sand.

Sand is a granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt. Sand can be found in many different environments, including beaches, deserts, and riverbeds.

The grains of sand are typically made of silica, which is a type of silicon dioxide. Silica is a very common mineral, and it is the main component of quartz. The grains of sand are formed when rocks are broken down by weathering and erosion.

Sand is a permeable material, which means that it allows water to flow through it. This is because the grains of sand are not tightly packed together. The water can flow through the spaces between the grains of sand.

Sand is also a non-capillary material, which means that it does not allow water to rise up between pores due to capillary action. This is because the grains of sand are too large for water to be able to adhere to them.

Therefore, all of the statements in the question are correct.