They are all connected by cell phones which can also use the internet. Cell phones
It's because of Plate tectonics.
Answer:
D. 
Explanation:
Let be a circle with a radium of 4.9 meters. The formula to determine the area of the circle is:

Where:
- Radius, in meters.

The area of the circle is:

The epicenter of an earthquake is the location directly above the hypocenter on the surface of the earth. The “Ring of Fire” also called the Circum-Pacific belt, is the zone of earthquakes surrounding the Pacific Ocean — about 90% of the world's earthquakes occur there.
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