Answer:
Tobacco
Explanation:
Tobacco was a big crop but in order to farm it takes a lot of manpower. In turn slaves were used to farm and grown the tobacco.
<em>Your answer is FR. </em>
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<em>"Fixed Ratio"</em>
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<em>I hope this helps. </em>
The research demonstrated that <span>individuals improve most mental abilities during adulthood and then experience a gradual decline.
After people surpassing the mid-age, regeneration of the brain cells will also start to decline, which resulted in the impairment of cognitive ability that played a crucial role in our analytic ability.</span>
<span>b.have high self-esteem and are self-reliant.</span>
