ESS
Grade-7
Easy

Question

The world's longest undersea mountain chain is approximately____________.

  1. 64000 km    
  2. 46000 km    
  3. 40006 km    
  4. 60004 km    

hintHint:

The world's longest undersea mountain chain is approximately 64000 km.

The correct answer is: 64000 km


    • The largest under-ocean mountain is called the mid-ocean ridge.
    • It is the largest mountain range in the oceanic lithosphere.
    • The longest undersea mountain extends to 64000 km. 

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