Volcanic Eruptions and Their Impact

What term is used to describe all rocks formed from magma in the Earth's mantle?

• Metamorphic

• Igneous

• Tephra

• Sedimentary

Which type of magma is known for being silica-rich and forming close to the surface?

• Tephra

• Basaltic

• Andesitic

• Rhyolitic

What is the primary characteristic of basaltic magma?

• Rich in tephra

• Silica-rich and cool

• Iron-rich and hot

• Intermediate silica and iron

What type of volcanic deposit is formed by a pyroclastic flow?

• Obsidian

• Scoria

• Ignimbrite

• Pumice

Which volcanic rock is known for its glassy texture due to rapid cooling?

• Basalt

• Obsidian

• Andesite

• Rhyolite