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our world is practically made of rock. Some of these rocks are big, some are small, some are formed deep beneath the earth, and some formed at the surface. While they may look similar, not all rocks are created equal. look closely, and you'll see differences between every boulder, stone, and pebble.
our world is practically made of rock. Some of these rocks are big, some are small, some are formed deep beneath the earth, and some formed at the surface. While they may look similar, not all rocks are created equal. look closely, and you'll see differences between every boulder, stone, and pebble.
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