Pretty sure C) the Rio Grande.
In the west, the Atlantic, east, Atlantic is connected to the pacific, and the Arctic is in the both and south. I hope it somewhat helped. Sorry if I didn’t :)
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i would say white because if they were to turn black they would be more visible to predators i believe they have black skin under their fluff .
Hope this helps
Answer:
I think its C:the splitting of radioactive nuclei into two or more smaller nuclei
