Approximately 97.5% of the earths water is salt water (saline), and 2.5% is fresh water hope this helps.
Answer:
Stratovolcanoes are common at subduction zones, forming chains and clusters along plate tectonic boundaries where oceanic crust is drawn under continental crust (continental arc volcanism, e.g. Cascade Range, Andes, Campania) or another oceanic plate (island arc volcanism, e.g. Japan, Philippines, Aleutian Islands).
How many do you need? because there is more then one.
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