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A landowner was investigating a fallen tree on his property, when he unearthed a runestone carved by early Swedish immigrants.In 2018 a tree fell in a forest near Wawa, Ontario, revealing a slab of stone etched with Norse runes. Researchers have ony ...
All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.
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