Answer:
Climate and slavery
Explanation: Slaves were the main reason that there was food before the end when Abraham was president. Climate and slavery can change how the crops were grown. I'd also say the geography was messed up then due to the climate. (sorry if wrong Q-Q)
Im pretty sure it’s depth sorry if I’m wrong...have a great day:>
Lymph plasma and red blood cells swell the area to repair and protect the wound