3. A. What is the depth where we are going to find the ocean crust that is 50 million years old. Consider that the depth of the mid-ocean ridge is 1000 m. B. The spreading of the middle ocean ridge is 5 cm/yr. B.In what distance from the middle ocean ridge, you are going to find the position of the depth that you calculate in question A. C Considering now that the velocity of the spreading center is double the previous from question B, in what distance you will find the same depth as in question A and what do you believe will be the effect in the sea level considering that the water volume in our planet remains the same.

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