Question

__________ is the opening of a volcano through which lava and gas come out​

Answer 1

Explanation:

According to the United States Geologic Survey, there are approximately 1,500 potentially active volcanoes worldwide. Most are located around the Pacific Ocean in what is commonly called the Ring of Fire. A volcano is defined as an opening in the Earth's crust through which lava, ash, and gases erupt.

Answer 2

"Lava gushes from a spatter cone at Kilauea, Hawaii, 2004. Hawaii Volcano Observatory (United States Geological Survey) image. A volcano is an opening in the earth's crust through which lava, volcanic ash, and gases escape."