The answer is A zinc is oxidized and copper gets reduced
Answer:
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The answer is 4 days. because if 2 people were digging a whole hole, it would take twice as long, being 8 days. digging half a hole, you would just cut the 8 in half, leaving 4 days for 2 people to dig half a hole.
The answer is B , 2 and 7.
Hope it helped ............