Summed over the entire Earth . Group of answer choices the rate of lithospheric consumption at subduction zones is greater than the rate of lithospheric production at mid ocean ridges the rate of lithospheric consumption at subduction zones is less than the rate of lithospheric production at mid ocean ridges the rates of lithospheric consumption at subduction zones and production at mid ocean ridges are equal the rates of lithospheric consumption at subduction zones and production at mid ocean ridges have not been equal over the previous 500 million years but are now presently equal none of these are correct