Ancient Egyptian civilization began more than 5,000 years ago along which river?

Nile River. The Nile was the lifeblood of ancient Egypt because of its fertile soil for farming.

Explanation:

c) the invasion of the shang

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.