He studied the fossils' age and how tall the mountains are. He also studied how old they are. I don't know about Coal Beds but he also used balloons to find out the continents were once a big supercontinent called Pangaea and they apparantly drifted apart
There were key differences between the two documents in the how they both confided the law. The article of confederation established a unicamy legislature. As opposed to the eventual bicameral system created by the constitution. The articles created a loose confederation of sovereign states in a week central government leaving most of the power with the state governments. The need for a stronger federal government soon became apparent and eventually led to the constitutional convention in 1787.
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Keniwick man had a hard life because they didnt have clean ares to live if the got an ingury they would get worse by infections.
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