In seafloor spreading, new oceanic crust is added at the mid-ocean ridge, and, as intrusion continues, seafloor moves toward the edge of the oceanic plate, where it is ultimately pulled back down into the magma below. ... It has deep trenches and high ridges.
I'm am unsure what context the answer needs to be in or how specific they need to be. Minerals are used in most building supplies, fertilizers, cooking ingredients, and machinery.
Water is very important for human beings.without water we can die. For example we don’t have water in our locality and we even forget to save some water. Then it will be difficult for us to do household things like washing dishes cooking foods bathing.water is not only important for our life but also helps to fulfill some features like cooking washing clothes etc
