The letter "K"
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Slaves were fed very little during the Middle Passage. The best slave ships fed the slaves beans, corn, yams, rice, and palm oil. However, the slaves were not always fed every day. If there was not enough food for the sailors and the slaves, the sailors would eat first, and the slaves might not get any food.

A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Ancient Egypt, all grew up in river valleys. Tigris River flourished near Mesopotamia civilization and river nile flourished near civilization of Egypt.
<h2>ꜰᴏʟʟᴏᴡ ᴍᴇ❤</h2>
They can both digest but in different ways.