What ways did nile benefit early people of nubia

One way was that people of Nubia were able to create communities and settle on land close to the Nile.

The goods the europeans wanted the most were gold, jewels, silk, perfumes, and especially spices.

Is there a passage that comes with this question or should i know this right off the bat, because if it is, i probably have short term memory loss or college is too stressful