<span>Discarding mass amount of human and consumer waste.</span>
Answer:
https://quizlet.com/55430564/world-history-chapter-13-ghana-a-west-african-trading-empire-flash-cards/
Explanation:
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Alfred Thayer Mahan recommended that the American military should focus on sea-power as the key to its success in any contemporary or future conflicts.
Answer:
In 1501, shortly after Christopher Columbus discovered America, Spain and Portugal began shipping African slaves to South America to work on their plantations. In the 1600s, English colonists in Virginia began buying Africans to help grow tobacco.
Explanation:
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