Volcanic Gases and Their Effects

Miss Rizzle teaches about volcanoes, their gases, and the hazards they pose. The class learns about the most common volcanic gases, such as water vapor, CO2, and SO2, and their effects on health and the environment. They take a virtual field trip to Hawaii and Alaska to observe volcanoes and discuss the long-term effects of volcanic activity, including acid rain and volcanic smog.

What is the most abundant gas released by volcanoes?

• Sulfur Dioxide

• Carbon Dioxide

• Helium

• Water Vapor

Which gas is known to irritate the skin and respiratory tract?

• Carbon Monoxide

• Helium

• Sulfur Dioxide

• Hydrogen Fluoride

What is the recommended maximum concentration of sulfur dioxide over 24 hours according to the World Health Organization?

• 5 PPM

• 10 PPM

• 15 PPM

• 20 PPM

Where did the field trip take the students first?

• Alaska

• Hawaii

• Mount Redoubt

• Mount St. Helens

What is the main component of volcanic ash clouds?

• Silica

• Iron

• Sulfur

• Carbon

What is the term for the large white plume created when lava flows into the ocean?

• Lava Fog

• Lava Cloud

• Lava Haze

• Lava Mist

Which gas can cause acid rain when released by volcanoes?

• Hydrogen Chloride

• Carbon Dioxide

• Sulfur Dioxide

• Helium

What is the potential hazard of hydrogen chloride emitted from volcanoes?

• Explosive reactions

• Causes skin burns

• Irritates eyes and respiratory tract

• Freezes at low temperatures

What is the effect of sulfur aerosols on the Earth's surface temperature?

• Increase temperature

• No effect

• Lower temperature

• Cause earthquakes

What is the potential impact of lava haze on marine life?

• Improves water quality

• Increases fish population

• No impact

• Affects fish due to hydrogen chloride