| Question 1: The dark areas visible on Earth's ________, the lunar maria, are plains of flood basaltic lava flows. | |||
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| Question 2: Basalt which erupts under open air (that is, subaerially) forms three distinct types of lava or volcanic deposits: scoria, ash or cinder; ________ and lava flows. | |||
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| Question 3: It is silica-undersaturated and may contain feldspathoids, alkali ________ and phlogopite. | |||
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| Question 4: Compared to other rocks found on Earth's surface, basalts ________ relatively fast. | |||
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| Question 5: Tholeiitic basalt is relatively poor in ________ and poor in sodium. | |||
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| Question 6: Pwisehn Malek, Pohnpei, ________[6] | |||
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| Question 7: Basalt has also formed on Earth's Moon, ________, Venus, and even on the asteroid Vesta. | |||
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| Question 8: Included in this category are most basalts of the ________ floor, most large oceanic islands, and continental flood basalts such as the Columbia River Plateau. | |||
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| Question 9: Hawaii's ________ volcano erupted in this way in the 19th century, as did Mount Tarawera, New Zealand in its violent 1886 eruption. | |||
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| Question 10: The groundmass contains interstitial ________ or tridymite or cristobalite. | |||
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