weathering and transport of solids
California has more earthquakes and the type of rock where gold is. In Illinois, we have mostly sedimentary rock so we don't have gold deposits.
The floods in mesopotamia were common and irregular, but the mesopotanians dealt with that by living on high banks of rock near the rivers tigress and Euphrate. When the river flooded, the water would go through the banks, not over them, and the rocks would filter out debris. The debris free and nutrient rich water would then water the crops in the fields.
Clay was never invented but it was discovered that you dampen it, sculpt it and finally bake it somewhere on the banks of the river Nile. It's not biodegradable as it is actually a kind of rock. It'll turn to dust eventually but only at the same speed a plastic bag will turn into gasses
Posted: I actually have no idea.but if I were to guess they used leves Improved Answer: Wow, leafs? Like that can control a river. Simple, a dam. Made of what? Well, molted rock. Kind of like dams now. Leafs would float away in the river, unless they make it hard as rock...
leicester city we built this city on rock and or roll.
fd
Deposition
an old river
riprap
A rock formed from deposits of shell fragment is Limestone.
Over millions of years, layers of sediment may build up and harden into sedimentary rock. Some of the many forms of sedimentary rock include sandstone, rock salt, and coal. Sandstone forms as sand hardens.
Sedimentary rock is the rock formed as a result of deposits from weathering and erosion. Sedimentary rock can be millions of years old.
Loess deposits.
moraines
The abrasion and attrition combined with hydraulic action on the river bed and the river banks erode away the underlying rock which results in small grains of rock we call sand. Depending on the speed of the river and the size of the particles, the sand will be deposited by the river at different stages (usually though it is found near the mouth of the river).
A sedimentary rock formed from sand deposits is called a 'Sandstone' or generically a 'Psammite'.
one of them is sandstone.