This week, we learned … … an icy superhighway once carried glaciers from Namibia to Brazil. How did they drift apart? … the Delta teacher shortage has reached crisis levels. What are trends that contribute to teacher shortages? How is National Geographic working to address them? … for years, buckets full of uranium ore sat in a museum building at Grand Canyon National …
from National Geographic Education Blog https://ift.tt/2GDlKzF
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