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.
Crust:outer silicate solid crust
mantle:highly viscous
core:solid inner core
<span>a. it provides freshwater for cooking and gardening</span>
