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National Park Quiz 39: Winter

This week’s quiz will find out if you are a winterwise park visitor. Answers are at the end. If we catch you peeking, we’ll make you explain why the Bergeron-Findeisen process grows snowflakes only because the equilibrium vapor pressure of water vapor with respect to ice is less than that with respect to liquid water at the same subfreezing temperature.
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The Future of the "Gateway Arch" is On the Table—Will You be Part of the Discussion?

Jefferson National Expansion Memorial in St. Louis and the grounds around the "Gateway Arch" could look very different in the years to come, depending upon the outcome of a plan that is currently being developed. This plan could have far-reaching implications and public comments are currently being accepted. Here's what you need to know about this issue.