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National Geographic did an article on that

Other way around, iceland is the small island next to it, and Greenland is the big frozen mass labelled canada here.

here have a picture

ZBrush is a huge program made for 3d sculpting. Plasticity is new and will take a bit before it's more accessible through public sources. You could get Zbrush from appnee or one of the sites listed here

You can take out the cleaning pad and throw it in the laundry, or bath it in the sink