Ice caps over Antarctica are on average 7 000 feet thick, or around 1 mile, so 1 miles is the correct answer, and the thickest are about 2 miles thick- so that's also a correct answer.
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The likely reason as to how Lee small army troops defeated
the Mcclean’s larger force and kept the union troops out of Richmond because Mcclean
was being too cautious though it was only on the first day that they won
because the following day, Lee’s army lost the battle.
Charles L. Eidlitz was chosen I believe