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[1] Committee on Grand Research Questions in the Solid-Earth Sciences, National Research Council. Origin and Evolution of Earth: Research Questions for a Changing Planet. http://www.nap.edu/catalog/12161.html
[2] Ten Questions Shaping 21st-Century Earth Science Identified http://www8.nationalacademies.or ... aspx?RecordID=12161
[3] Origin and Evolution of Earth Research Questions for a Changing Planet http://dels.nas.edu/dels/rpt_bri ... _of_earth_final.pdf
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