Can a graph show you if the American dream has been achieved by an immigrant? What kind of information do you need?

I guess it could. If you had like a graph of their financial status increasing. Speaking of which thatd the information you would need. You would need to be able to see their finances.

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.