easy really, it decays away by all of the water gushing and pounding the boulders non stop so all the sharp bits erode and is smaller and smaller
Beach pebbles are smooth as they are eroded by the waves
A bullnose is a finished material that has a curved or rounded edge. Bullnose edging is used for creating a smooth, rounded edge for counter-tops, corners and other constructions.
A smooth rounded end of the bone is called a condyle.
Gastroliths were the smooth, rounded rocks that dinosaurs ingested to help them digest and grind their food. These rocks were swallowed and moved around in the stomach to break down tough plant material.
Pebbles on the beach are round and smooth due to the natural processes of erosion and weathering. As they are carried by water currents and waves, they collide with other rocks and sediment, gradually wearing down their jagged edges. This continuous tumbling and abrasion refine their shape, resulting in the rounded, polished appearance characteristic of beach pebbles. The process can take thousands of years, contributing to the smoothness and uniformity of these stones.
Over time, the sand and water at a beach both work together like a sandpaper to smooth out the surface of these pebbles.
The sand and other material are deposited on the beach by the wind and tidal currents.
By weathering. The water currents weather the rocks leaving them smooth.
Erosion after millions of years have caused the jagged edges to smooth out. Hi
Erosion after millions of years have caused the jagged edges to smooth out. Hi
The condyle is a bony landmark defined as a smooth rounded knob. It is often found at the ends of long bones, such as the femur or mandible, and functions in articulating with other bones to allow movement at joints.
Much of the coarser sediment material supplied by rivers settles out near shorelines or on beaches.