How did the settlers of the great plains increase the vulnerability of the land? check all of the boxes that apply. farmers rotated their crops too often in an effort to replenish the soil’s nutrients. farmers over-cultivated the land with plows. ranchers allowed their herds to overgraze. ranchers did not allow their herds to graze on the grasslands. farmers planted shallow-rooted crops like wheat, which could not hold in the soil when high winds came.