What did the Nubians do because they had less farm land than Egypt?

Due to having less arable land than Egypt, the Nubians developed a more diversified economy, focusing on trade, herding, and mining valuable resources like gold. They established trade networks with neighboring regions, exchanging goods such as ivory, ebony, and textiles. Additionally, they practiced agriculture in the fertile areas along the Nile, often utilizing irrigation techniques to maximize their limited farmland. This adaptability allowed them to thrive despite the challenges posed by their environment.