<span>Slaves were originally brought to British North America for the purpose of working in plantations. British North America depended on slaves to perform labor-intensive cultivation of tobacco that was to be exported to European markets. This resulted in the establishment of slavery to replace indentured servants.</span>
Mesopotemian civilization were one of the first people who thrived with agriculture, right there with Egyptians pharaos and the Indus valley people. If we check the geographic location of each one of these people, you will notice that their lands are full of rivers and good soil. In Egypt there's the Nile river, in modern day Iraq, which is where mesopotemia existed, there are 2 main rivers that proved to be essential for the rise of agriculture in the ancient middle east.
I hope this answers your question, and I am at your service if you have any other inquiry about history.
The correct answer, in my opinion, would be a pollutant. <span>A substance that enters Earth's cycles and does harm to living things is a pollutant. A pollutant is a substance that is introduced to the Earth which cause undesirable effects to living organisms. </span>
The most likely influence on the economy would be a positive one: this would come from three aspects:
1) if it were legal, the state and federal governments could benefit from taxes
2) it could be produced in the US: new jobs in agriculture
3) less spending on prevention and a smaller prison cost
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