There are two main sources:
Sand existed in all Fanerozoic eon, and possibly was first created in the Proterozoic eon.
Sandstone.
they are formed when wind lifts up dry sediments and accumulate over time Sand dunes are big piles of sand washed up from the beach
Sand particles are in fact a variety of sizes on the same beach front. This is because these sand particles are formed at different times through different processes.
A sand dune is a mount,hill or ridge of sand that lies behind the part of the beach affected by tides.They are formed over many years when windblown sand is trapped by beach grass or other stationary objects..
A beach is a landform that consists of sand beside the sea. Beaches are formed by the deposition of sediment carried by waves and currents along the shoreline.
A shellfish, clam, or mollusk, e.t.c., dies and floats to the beach. Then it decomposes and becomes sand. The sand piles up and forms a beach.
Sand dunes can help trap sand on a beach, they can also be called sand traps. It is a natural way of keeping sand on a beach.
The intricate patterns formed when waves interact with sand on the beach are caused by the movement and interaction of the water and sand particles. The waves create different patterns based on the strength and direction of the wave, as well as the size and shape of the sand particles.
A coastal beach is a beach on the coastline of something. A coastal beaches is formed by water erosion . It literaly forms everything even the sand.
their is not water under the sand on a beach. If there was the beach would collapse.
A beach is formed by both erosion and deposition. Waves erode the coastline by picking up and moving sand and sediment, which then gets deposited along the shoreline to create a beach. Erosion and deposition processes continually shape beaches over time.
Beach sand is a heterogeneous mixture