Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. They accumulate in layers.
The benefits of Desalination. One of the benefits is that we able to use the earth's abundant salt water supply. Meaning that the salt water could be purified of salt, and distributed to the places that need it. One of the drawbacks is that not much water is left after the process.