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Read these sentences from the article "Famine: Past, Present, and Future."

In the end, at least a million Irish people died in the Great Hunger. At least a million more fled the famine for places like Scotland, Australia, and America.

How do these sentences help develop one of the key concepts in "Famine: Past, Present, and Future"?

It suggests that famine may cause physical damage to populations.

It shows that some regions are more impacted by hunger than others.

It emphasizes the social consequences of famine, such as a diminished population.

It explains that outcomes of famine may be reversible over time.