Final answer:
Traveling down the Nile from the source to the Delta, you would see changes in geography, climate, vegetation, and land.
Step-by-step explanation:
If you were traveling down the Nile from the source to the Delta, you would see and feel various changes in geography, climate, vegetation, and land. Starting from the source, the Nile is a small and narrow river flowing through rocky and hilly terrain. As you move downstream, the river widens and becomes deeper, passing through fertile floodplains surrounded by deserts. The land becomes more flat and the vegetation changes from sparse shrubs and grasses to lush green fields and palm groves along the riverbanks. The climate becomes warmer and drier in the lower reaches, but the presence of the river still provides some relief.