Question: Which two geologic processes result from vertical circulation within the mantle? Need Assignment Help? View Available Hint(s)for Part A The subduction of hot rock along oceanic ridges results from the mantle's downward circulation, whereas the upwelling of oceanic plates at trenches results from the mantle's upward circulation. The upwelling of hot rock along oceanic ridges results from the mantle's downward circulation, whereas the subduction of oceanic plates at trenches results from the mantle's upward circulation. The upwelling of hot rock at trenches results from the mantle's downward circulation, whereas the subduction of oceanic plates along oceanic trenches results from the mantle's upward circulation. The upwelling of hot rock at trenches is the result of the mantle's upward circulation, whereas the subduction of oceanic plates along oceanic trenches is the result of the mantle's downward circulation. The upwelling of hot rock along oceanic ridges is the result of the mantle's upward circulation, whereas the subduction of oceanic plates at trenches is the result of the mantle's downward circulation.