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Part of rock which is produced by weathering or by the action of the sea.
Most sand is light in color and is made of quartz. |
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Useful Links |
Physical Environment > Sand
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This site tells the story of the history of the universe. Click Earlier and Later to follow the story.
Note: Many facts have been simplified to make them easier to understand.
Click here to read Time Crystal, history of the Universe as sci-fi fantasy romance!
Note: Many facts have been simplified to make them easier to understand.
Click here to read Time Crystal, history of the Universe as sci-fi fantasy romance!
