Describe the difference between the ridge push hypothesis and slab pull process.

Slab pull is the cool dense crust sinking into the earth in subduction zones, this literally pulls the entire plate down with it. Ridge push is the lifting and pushing apart of the plates at spreading zones.

The Pacific ocean floor moves much quicker than the Atlantic because it has both slab-pull and ridge push acting on it, while the Atlantic only had ridge push (probably the weaker of the two forces)