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5 votes
All of the following helped to improve the efficiency and production of farmers at the turn of the 19th century except:

A. the steel plow
B. gas tractors
C. mechanical reaper
D. barbed wire

User CascadiaJS
by
7.9k points

2 Answers

3 votes
If I’m correct I believe it is barbed wire
User Dennis Sparrow
by
8.2k points
6 votes
The answer is D. barbed wire.


hope this helps
User Mark Nugent
by
7.4k points
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