Study Figure 2.7 and identify a margin where; A. two plates are moving apart. B. two plates are moving towards each other.

Here are the plate margins based on Figure 2.7:

A. Two plates are moving apart.
The arrows indicate that the North American plate and the Eurasian plate are moving away from each other along their boundary in the North Atlantic.
Answer: North American plate and Eurasian plate

B. Two plates are moving towards each other.
The arrows show that the Nazca plate and the South American plate are moving towards each other along their boundary.
Answer: Nazca plate and South American plate