A farmer has a section of a field that measures 4×10^3 feet by 5×10^5 feet planted with carrots. Another section is planted with corn measuring 6×10^4 feet by 3×10^4 feet. Part A: What is the area of the carrot section? Show work.

Part B: What is the area of the corn section? Show work.
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Part C: How much larger is the area of the carrot section than the corn section. Show work.