If the Area Shown in This Figure Is 240 Kilometers

question 88

Multiple Choice

If the area shown in this figure is 240 kilometers wide and the oldest crest is 4 million years old,what was the approximate rate of seafloor spreading across this ridge?

• A)0.24 kilometers per million years
• B)2.4 kilometers per million years
• C)60 kilometers per million years
• D)240 kilometers per million years
• E)960 kilometers per million years

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