Exam 5: The Wrath of Vulcan: Volcanic Eruptions

The image below shows a ________,which is a large piece of pyroclastic debris ejected during an eruption,with a smooth texture due to the fact that it was partially molten when ejected.

A fast-moving flow consisting of a mixture of water and volcanoclastic debris is termed a ________.

The image below shows a lava dome that never left the volcanic crater.What is the likely composition of the rocks that make up this lava dome?

The tall polygonal features preserved in the ancient basalt flow in the image below formed because the lava ________.

Ash,cinders,and blocks are all types of ________.

Which of the following is FALSE? Caldera forming eruptions ________.

Which of the following poses the greatest hazard to human life associated with volcanoes?

A Minoan civilization,postulated to be the fabled "City of Atlantis," was destroyed by the eruption of ________.

The cloud that rises from the vent of an actively erupting volcano is composed of ________.

The famous "year without a summer" occurred due to the eruption of ________.

Why is felsic magma much more likely to produce an explosive eruption?

Which of the following volcanic products can decrease global temperatures?

Scientists monitor volcanoes to help predict when eruptions will occur.Which of the following is NOT a potential sign to look for when predicting volcanic eruptions?

A mixture of air,hot ash,and pumice lapilli that rushes down the side of a volcano in a scalding avalanche is termed a(n)________.

Gases that are abundantly emitted by volcanoes include ________.

Volcanic eruptions release ________,which can block some sunlight from reaching Earth.

Nonviolent eruptions characterized by extensive flows of basaltic lava are termed ________.

Volcanic bombs are ________.

Basaltic lavas ________.

Describe how an explosive volcanic eruption can create a global cooling event.