Volcanic Eruptions and Their Impact

What can lava and pyroclastic flows do to vegetation near a volcanic eruption?

• Create new plant species

• Cause plants to bloom

• Burn and destroy vegetation

• Enhance plant growth

Which historical eruption is known for flattening forests near Lake Taupo?

• Mount Krakatoa

• Lake Taupo caldera

• Mount Vesuvius

• Mount St. Helens

How can volcanic eruptions alter drainage patterns?

• By increasing river flow

• By drying up existing lakes

• By forming lakes and diverting rivers

• By creating new rivers

What happened to Lake Rotomahana after the 1886 eruption?

• It grew substantially in size

• It remained unchanged

• It dried up completely

• It shrank in size

What is a benefit of volcanic ash for soil?

• It adds essential minerals

• It reduces soil pH

• It makes soil infertile

• It causes soil erosion

Which mineral deficiency can result from large amounts of volcanic ash?

• Iron

• Cobalt

• Calcium

• Magnesium

What was the global climatic effect of the 1991 eruption of Mount Pinatubo?

• Global temperatures decreased

• No change in global temperatures

• Global temperatures fluctuated

• Global temperatures increased

What was the year without a summer caused by?

• The eruption of Mount Pinatubo

• The eruption of Mount Tambora

• The eruption of Mount Vesuvius

• The eruption of Mount St. Helens

What was a consequence of the 1815 eruption of Mount Tambora?

• Increased agricultural yield

• A warm summer in Europe

• Snowfall in summer months

• No significant impact

How did the eruption of Mount Tambora affect Europe?

• It had no impact

• It caused widespread hunger

• It improved weather conditions

• It led to a prosperous harvest