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lorenzo97
lorenzo97 lorenzo97
  • 19-05-2016
  • History
Answered

what invention increased crop yields and made soil porous

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kgebon80
kgebon80 kgebon80
  • 19-05-2016

i think its the PLOW

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firemaiden
firemaiden firemaiden
  • 19-05-2016

I also think it is the plow.

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