GEOLOGY

Detailed explanation-1: -Fractures can also act as conduits for escaping volcanic gases, which are released at the surface through vent openings called fumaroles.

Detailed explanation-2: -The crater is the bowl shaped opening located at the top of the volcano. The crater is also the steep sided walls made of hardened lava that surround the main vent. Lava can flow from the main vent, but not all volcanoes eject large amounts of lava.

Detailed explanation-3: -A volcanic vent is the place at the Earth’s surface where lava flows, tephra (pyroclastic materials consisting of volcanic ash, lapilli, or bombs), and fragmented rocks are erupted. Volcanic gases are also emitted at vents.

Detailed explanation-4: -A passage through which the magma travels to the Earth’s surface is known as a vent. A circular depression of the volcano is called a crater. 2. A vent enables a volcanic eruption. A crater is formed as a result of a volcanic eruption.

Detailed explanation-5: -A caldera is a depression created after a volcano releases the majority of the contents of its magma chamber in an explosive eruption. Without any structural support below, the land around the erupting volcanic vent or vents collapses inwardly, creating the bowl-shaped caldera.