We had dinosaurs before we even lived as people.
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<span>The margins surrounding the Atlantic ocean are passive, meaning they are not actively taking part in a continental rift or collision. Contrarily, the Pacific margin is active, as it occurs at a plate boundary. The Pacific Ocean is shrinking, while rifting in the middle of the Atlantic is causing it to grow.</span>
They helped cool off the earth removing heat from its interior. Volcanic emissions have produced the atmosphere and the water of the oceans. Volcanoes make islands and add to the continents. Volcanic deposits are also used as building materials.
There are so many. The Mississippi delta. The Grand Canyon of Arizona. Every volcano. The Bonneville salt flats.