Volcanoes can be two broad types: stratovolcano and a shield volcano namely.
In volcanology, viscosity plays a crucial role. High viscous (extremely sticky) magma eruptions typically result in steep-sided volcanoes with 30-35° slopes. This is due to the fact that the viscous volcanic material doesn't flow very far once it is erupted; instead, it accumulates in layers to form a cone-shaped volcano called a stratovolcano. In contrast, shield volcanoes have mild slopes of less than 10° and produce more basalt fluid lavas during eruption. A shield volcano's eruption can cause the basalt to flow far from the vent, creating broad, gentle slopes.
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the salinity of bay of bengal is less than that of arabian sea!
1. Seattle
2. Washington D.C
3. San Francisco
4. Canada
5. Yakutsk