Process:  -There are places inside Earth where rock will melt -Melted rock inside the Earth is also called molten rock, or magma -Magma moves up through Earth&#x27;s crust, but it does not always reach the surface -When magma erupts onto Earth&#x27;s surface, it is known as lava -As lava flows from volcanoes it starts to cool -Minerals form when magma and lava cool -
 Question: What is the effect of less free oxygen on less minerals forming.?
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