(Score for Question 5: ___ of 2 points) 5. Describe what occurs at mid-ocean ridges.

Study this map that shows the motion of the Earth's plates.

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6. Find the Nazca plate and the South American plate. How are they different? Are they moving toward or away from each other?

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7. How is the Nazca plate moving in relation to the Pacific plate?

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8. How are convection currents in the mantle (geosphere) and in the oceans (hydrosphere) similar? How are they different?