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Mathematics 28 Online
OpenStudy (anonymous):

impressions from very thin objects that were trapped in mud that was transformed into rock

OpenStudy (anonymous):

what kind of fossil is it

OpenStudy (horsegirl27):

Post in the science section you might get more help lol. Go to the top of your screen and select find more subjects then choose the correct subject ;)

OpenStudy (funnyguy2):

welcome to OS

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