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3 answers

Efficiency.

2006-09-26 03:22:57 · answer #1 · answered by tjc 2 · 0 0

It's the other way around. Those machines are needed for larger fields. The number of people needed to harvest a corn field that's several thousand acres would be huge and prove to be too costly.

2006-09-26 03:33:12 · answer #2 · answered by Mike R 5 · 0 0

To have economy.

2006-09-26 03:28:31 · answer #3 · answered by alim 1 · 0 0

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