During a volcanic eruption, lava, tephra (ash, lapilli, volcanic bombs and blocks), and various gases are expelled from a volcanic vent or fissur
— Read on www.geologypage.com/2015/03/types-of-volcanic-eruptions.html
Ontario Association of Geographic and Environmental Educators
Teacher organization supporting Geographic Education, Ontario, Canada
During a volcanic eruption, lava, tephra (ash, lapilli, volcanic bombs and blocks), and various gases are expelled from a volcanic vent or fissur
— Read on www.geologypage.com/2015/03/types-of-volcanic-eruptions.html