Which of the following volcanic features or events are most commonly associated

Question

Which of the following volcanic features or events are most commonly associated with shield volcanoes? Choose ALL that apply. a. Fissure eruptions b. Directed blasts C. Lava fountains d. Lava tubes What is the most common short-term climatological effect of pyroclastic eruptions? a. Sulfuric gases create giant acidic clouds that spread out across the globe. b. Small particulates injected into the atmosphere reflect sunlight and lower Earth's average temperature. c. Hot gas and magma explode into the sky and substantially heat up the oceans and atmosphere around the globe. d. None of these things.

Explanation / Answer

Question 12

a. fissure eruptions

Shield volcanoes are formed by lava flows of low viscosity - lava that flows easily.

Consequently, a volcanic mountain having a broad profile is built up over time by flow after flow of relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano.

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