Question

বোন দয়া করে আমাকে উত্তর দিন​

Answer 1

A pebble is a clast of rock with a particle size of 4–64 mm based on the Udden-Wentworth scale of sedimentology. Pebbles are generally considered larger than granules and smaller than cobbles. A rock made predominantly of pebbles is termed a conglomerate.