Volcano Classification and Characteristics

The video discusses the classification of volcanoes into active, dormant, and extinct categories. It explains that an active volcano is one that has erupted since the last ice age or has an active magma chamber. Dormant volcanoes have not erupted since the last ice age and lack an active magma chamber but could theoretically erupt again. Extinct volcanoes have not erupted since the last ice age and are not expected to erupt again. The video provides examples and criteria for each classification, highlighting the complexity and variability in defining volcanic activity.

What is a key factor in determining whether a volcano is considered active?

• The color of the lava

• The number of eruptions in the past year

• The presence of a magma chamber

• The height of the volcano

Which volcano is mentioned as having erupted since the end of the last ice age?

• Mount Vesuvius

• Mount Hood

• Mount Fuji

• Mount St. Helens

What is the significance of the last ice age in classifying volcanoes?

• It caused all volcanoes to become dormant

• It is unrelated to volcanic activity

• It marks the boundary for determining active status

• It is when the first volcanoes formed

Which volcano showed signs of life in 2022 after an earthquake swarm?

• Mount Everest

• Mount Kilimanjaro

• Mount Rainier

• Mount Edgecumbe

What is a common feature of active volcanoes mentioned in the video?

• Snow-capped peaks

• Geothermal features

• Desert surroundings

• Dense forests

What is a characteristic of a dormant volcano according to the video?

• It erupts every 100 years

• It has erupted in the last 50,000 years but not since the last ice age

• It has a visible lava flow

• It is located near the equator

What event can change a volcano's classification from dormant to active?

• An increase in tourism

• A change in weather patterns

• An unexpected eruption

• A decrease in altitude

Which of the following volcanoes is classified as extinct?

• Mount Etna

• Goat Rocks

• Kilauea

• Mount Pinatubo

What is the primary criterion for a volcano to be considered extinct?

• It has not erupted since the last ice age and will not erupt again

• It is located underwater

• It has a flat top

• It is surrounded by urban development

What is the purpose of the closing remarks in the video?

• To invite viewers to request topics

• To summarize the entire video

• To introduce a new volcano

• To provide a weather update