A succession of ocean waves set in motion by a submarine earthquake (also known as underwater earthquake) is called a tsunami. This happens when tectonic plates move, converge, or subduct. Submarine earthquakes are common in Asia where there’s a submarine earthquake zone called Pacific Ring of Fire.
Threats include:water controlintroduced species<span>development</span>
A. S waves are also called secondary waves
A megalopolis is<span> typically defined as a chain of roughly adjacent </span><span>metropolitan areas.</span>
Answer:
A or B mabey sorry if its wrong
