The 145 million years is a little arbitrary, but it makes for a fun and unusual way to look at the world. Are your mountains young or old?
08 fevereiro 2020
Old Mountains vs Young Mountains
Information via: On This Day in Psychology: A Showcase of Great...
Information via: On This Day in Psychology: A Showcase of Great Pioneers and Defining Moments (www.amazon.com/dp/B00V5D0KXI)
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