Read the passage found in World Geography online textbook (Topic 3: Middle America, Lesson 1: the Olmec and Maya Civilizations). Then, answer the question: How did the slash-and-burn agriculture method helped the Olmec population?

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a the population decreased
b the population increased
c the population had no change
d the population migrated
the answer can be 1 or more

The slash-and-burn agriculture method greatly helped the Olmec population. This method involved cutting down trees and vegetation in a certain area and then burning the debris to clear the land. The ashes from the burned vegetation were then used as fertilizer for the soil, making it more fertile for farming. With this technique, the Olmec people were able to cultivate larger amounts of crops, leading to increased food production. This increase in food supply allowed the population to grow and thrive. Therefore, the correct answer is b) the population increased.