Question

A volcano is best defined as _________.

a.a dangerous geologic area
b.the site of a violent eruption
c.a chamber below-ground that is full of molten rock
d.a place where some magma reaches earth's surface

Answer 1

C and B are the most logical. I'd say C, though.

Answer 2

Answer: D. A place where molten magma reaches the earth's suface

Explanation: A volcano in line with option D is described as a vent or fissure on the surface of a planet (usually in a mountainous form) with a magma chamber attached to the mantle of a planet or moon (volcanoes do occur on other planetary bodies too) periodically erupting forth lava and volcanic gases and ash onto the surface. They are of three types: the strato or composite, the shield and dome based on their features and shapes.