Give me the brainiest answer! Explain to me what the Indus civilization is.

two large cities from the Bronze Age, its extent reached as far south and as far east

Explanation:

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.