Igneous Rocks
Quiz by Lisa Agostini
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8 questions
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- Q1Which texture best describes an igneous rock that formed deep underground?vesicularcoarse grainedfine grainedglassy60s
- Q2Obsidian's glassy texture indicates that it formedquickly, on Earth's surfaceslowly, deep below Earth's surfaceslowly, on Earth's surfacequickly, deep below Earth's surface60s
- Q3Which processes lead directly to the formation of igneous rock?heat and pressurecompaction and cementationweathering and erosionmelting and solidification60s
- Q4The photograph above shows a magnified view of a portion of a rock that can float if placed in water. Which terms best describe this rock?elastic and fragmentalfoliated and bandedcoarse and non-vesicularnon-crystalline and vesicular60s
- Q5Which igneous rock is dark colored, cooled rapidly on] Earth's surface, and is composed mainly of plagioclase feldspar, olivine, and pyroxene?obsidianrhyolitescoriagabbro60s
- Q6Which igneous rock has a vesicular texture and contains the minerals potassium feldspar and quartz?andesitepumicepegmatitescoria60s
- Q7What is the origin of fine-grained igneous rock?lava that cooled slowly on Earth's surfacesilt that settled quickly in ocean waterlava that cooled quickly on Earth's surfacesilt that settled slowly in ocean water60s
- Q8Which process could lead directly to the formation of pumice rock?explosive eruption of lava from a volcanometamorphism of unmelted rock materialdeposition of quartz sandprecipitation of minerals from evaporating seawater60s
