Describe what mendeleev found when he organized the elements by atomic mass

c. bounced back and forth from worthless to worth a lot and back to worthless

its perfect how it was

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.