The reason many rivers contain clay is because clay particles are lighter than the small rocks and pebbles beneath, so the clay particles are deposited on top of the rocks. However clay is not lighter than silt particles, in fact clay is much heavier. Normally the silt would cover the clay, but if the river is fast enough, it may continue to carry away the silt particles, and leave the clay.
Clay tablets were made out of clay that was easily found by the rivers of Tigris and Euphrates.
in rivers and lakes
Rivers and sedimentary basins.
kaolinite is found near rivers and near areas with clay material
The south is where red clay is found.
liquid found in rivers
There are a lot of water are found in rivers.
Clay is found in the ground.
Silt and clay.
No, rivers flow into oceans, and "source" implies "from." Sources of rivers are found in the mountains.
Clay is one form of soil. It is found in different areas, but is frequently found along riverbanks.
The correct answer is silt and clay.