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  They could go to places faster. Positive- faster transportation. Negative- pollution.
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  Made it easier trade. Positive-Made it easier trade. Negative - crime and rowdiness.
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  You didn't have to take most of your time to pick cotton seeds. It took less time to get the seeds. And negative- more slaves!!!!!
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  Things were easier to fix. Positive-Things were easier to fix. Negative- indenticle.
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  People could go faster. Positive- faster transportation. Negative-building.
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  You could harvest easier. Positive- Easier harvest. Negative- changes agriculture.
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  People could communicate. Positive- cheaper things. prevent misuse.
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  It was easier to farm. Positive- easier to cut soil. Negative- people became poor.