Volcano Types and Characteristics

The video provides an overview of volcanism, explaining what volcanoes are and their structures. It classifies volcanoes based on eruption frequency into active, dormant, and extinct categories. The video further explores different types of volcanoes, including shield, composite, and cinder cone volcanoes, detailing their characteristics, magma composition, and eruption types. It concludes with a discussion on volcanoes in Pakistan.

What is the origin of the word 'volcano'?

• Egyptian god of fire

• Greek god of fire

• Roman god of fire

• Hawaiian god of fire

Which part of a volcano stores molten rock?

• Lava flow

• Crater

• Magma chamber

• Secondary crater

How are volcanoes classified based on their eruption frequency?

• Explosive, Non-explosive, Quiet

• Shield, Composite, Cinder Cone

• Small, Medium, Large

• Active, Dormant, Extinct

What is a characteristic feature of shield volcanoes?

• Flat top

• Gentle slopes

• Conical shape

• Steep slopes

What type of lava is most commonly associated with shield volcanoes?

• Rhyolitic

• Andesitic

• Granitic

• Basaltic

Where are shield volcanoes commonly found?

• Along tectonic plate boundaries

• In polar regions

• In oceanic hotspots

• In desert regions

What is a defining feature of composite volcanoes?

• Flat and wide

• Conical with a concave shape

• Small and steep

• Irregular and fragmented

What type of eruptions are common in cinder cone volcanoes?

• Highly explosive

• Mild to moderate explosive

• Continuous lava flow

• Non-explosive

What is the typical height range for cinder cone volcanoes?

• 300 to 500 feet

• 600 to 900 feet

• 1000 to 2000 feet

• 2000 to 3000 feet

Which of the following is a characteristic of composite volcanoes?

• Only basaltic lava

• Multiple layers of lava and ash

• Single eruptive episode

• Located in oceanic hotspots