The ___ was a 980-building complex built in classic Chinese architecture for the emperor. Forbidden City Land on the Clouds Grand Temple Sacred House

It was the imperial palace of China for 492 years (1420–1912). It covers 0.72 sq km (0.28 sq mi), of which 15 hectares (38 acres) are floor area. It has 980 buildings in over 70 palace compounds, with over 8,700 rooms.

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.

the awenser wuold be slaves