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What are the most common types of famines and how are they caused?
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The most common types of famines include food shortages, economic crises, droughts, floods, civil wars, and political upheaval. Food shortages can be caused by a variety of factors such as natural disasters, war, or poor agricultural practices. Economic crises can occur when countries experience a sharp decline in their gross domestic product (GDP) which leads to reduced access to food. Droughts, floods, and other weather events can also cause crop failures that lead to famine. Civil wars and political upheavals can create disruption of trade routes and disruptions in infrastructure, leading to food shortages.