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Earth was all molten, and comets were forming it.
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The Earth is now cooling and solidifying, water is also starting to form on the surface.
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It rains for millions of years, making Earth a green ocean planet covered 90% by water. Huge volcanoes make up islands, and new rock known as granite comes into the world.
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Continents have formed, water and lava go into the cracks of these continents and granite forms underneath them, being light but tough, this allows the continents to be moved.
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The ocean is no longer dominant, oxygen is being put into the air by stromatolites.
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Water has changed from green to blue, so has the sky due to the oxygen and atmosphere change. The continents are moving due to plate movements.
