Answer:
Hiroshima
Explanation:
The first bomb was in Hiroshima, the second was on Nagasaki
I am pretty sure it is D but it could be A, sorry if I am wrong.
Answer:
The Great Lakes form the boundary between the US and Canada. The Rio Grande forms a big part of the boundary between Mexico and the US. And I guess the oceans form yet another boundary, defining our country.
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HOPE THIS HELPS :)</h2>