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When
I am
filled,
I can point the way. When I am empty, nothing moves me. I have two skins: One without and one within. Question: What am I? It's been around for millions of years. Yet it's no more than a month old. Question: What is it? It has roots that no one sees and is taller than the trees. Up up it goes, yet it never grows. Question: What is it? |