The earth has lots of water because about 71 percent of the earth’s surface, is water-covered, and the oceans hold about 96.5 percent of all earth’s water. Water also exist in water vapor, in rivers and lakes,ice caps glaciers,in the ground as soil moisture and in aquifers,even if you were a dog water is never sitting still. And because water is stored hydrate minerals of earth’s rock-could have formed a portion of its water.
Because to extent that these erupting volcanoes or vents have common or overlapping magma resorivers and hydro system , magma rising to erupt from one. Because it is lighter than the a soil rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents fissures in the earth surface magma that has erupted is called lava.when this type of magma erupts it flows out of a volcano.
Most lava that we see comes from the mantle. The mantle is inside the middle of earth, if we did not have no mantle gravity would not be a thing on earth.the mantle is under very high pressure (and temp).thin high pressure makes it behave like a solid,like molden clay.you must have observed that when you put water on a pan the hot water from the bottom comes up creating a conversition cell.
The main idea of all the questions is that the earth has different kind of layers they can protect the people that are on earth. The inner core holds the hot lava which comes from a volcano.the crust is the very first thing that protects the ground. The inner was formed 1-1.5 billion years ago.there has been many estimates for when the earth’s inner core was formed
The plates in spread from mid-oceanic ridges where new oceanic crust is being formed. And they destroyed it by plunging it back into the atthephere.
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