Q. The cup-shaped mouth of the volcano is known as__:
Answer: Crater
Notes: A bowl-shaped depression that is at the mouth of a volcano or geyser is called a volcanic crater. These craters are caused by the volcano’s activity. It is a vent.

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Question Number: 212 in Geology - Rocks, Plate Tectonics, Earthquakes, Volcanoes in above course in App.