English Language · English

The indigenous peoples of the Amazon rainforest developed a remarkable technique to enrich the otherwise poor tropical soils. By deliberately mixing charcoal, bone, and organic waste into the earth over centuries, they created a nutrient-rich, highly fertile soil known today as 'terra preta.' This anthropogenic soil sustained dense populations and complex societies long before modern agriculture. The practice demonstrates how traditional ecological knowledge allowed ancient Amazonians to thrive in an environment that would otherwise be challenging for large-scale cultivation. Which of the following best captures the essence of the passage?