Which business practice is described by the following scenario: a steel mill owner buys the mine that produces iron ore, the railroad that transports the iron ore, the factory that makes steelmaking furnaces, and the company that advertises the steel?

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.

is there multiple

i see, would you mind putting it as one?