Did you know? An AU (astronomical unit) (149.6 million km) is 40 thousand x Length of the Mississippi River (3,730 km)
Land used for permanent crops in Guinea (2018) (6,880 km^2)
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Land used for permanent crops in Guinea (2018) (6,880 km^2)
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.