The Earth's crust is made up of several pieces called tectonic plates. They fit together a bit like a jigsaw puzzle; but they are separate and they do move. Their movements are dependant on the forces exerted from below, by the viscosity of the mantle of the Earth. These same floating movements of the plates … Read more
Silty Soil is usually found in river delta areas...that area of the river just prior to entering a larger body of water, such as a lake or sea. These are the areas that are most likely to flood at regular intervals. Over the years the river, slowing it's onward rush to the ocean, will deposit … Read more
