Answer :
16. The correct answer is option C, that is, crater.
A circular depression around a volcanic vent is known as a volcano crater. This is the region from where the ash, lava, and rock erupts out of a volcano. In the majority of the conditions, the volcano crater is situated at the top of the volcano.
17. The correct answer is option B, that is, volcanic neck.
A lava neck or volcanic neck is also known as a volcano plug refers to a volcanic object produced when magma toughens inside a vent on an active volcano. A plug can result in an extreme creation of pressure if the elevating volatile-charged magma is trapped underneath it.
18. The correct answer is option D, that is, composite cone.
Composite cone volcanoes also are known as stratovolcanoes. These are the cone-shaped volcanoes comprising of the layers of ash, lava, and rock debris. These volcanoes are grand site and can grow to an elevation of 8000 feet or more.
i. The correct answer is option C, that is, crater.
ii. The correct answer is option B, that is, volcanic neck.
iii. The correct answer is option D, that is, composite cone.
Further Explanations:
Volcano crater is the circular depression present nearby a volcanic vent. These are the faults from where the ashes, molten lava, and rock erupt out to the surface from a volcano. In common cases, the volcanic craters are found at the summit of the volcano.
The lava neck or the volcanic neck refers to a volcanic residue produced when magma hardens inside a vent of an active volcano. It can result in the creation of extreme pressure if the moving volatile-charged magma gets trapped underneath it.
Composite cone volcanoes are also identified as strato volcanoes. They are cone-shaped volcanoes comprising of the layers of ashes, molten lava, and rock debris. These volcanoes are generally big in size and candevelop to an elevation of 8000 feet and even more.
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Answer Details
Grade: High School
Subject: Geography
Chapter: Volcanoes
Keywords:
Volcano crater,volcanic vent, ashes, molten lava, rock erupt, volcano, volcanic neck, volatile-charged, magma, Composite cone volcanoes,stratovolcanoes, elevation