19) Volcanism is associated with Transform Faults (T) or (F). 20) If magma cools
ID: 296744 • Letter: 1
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19) Volcanism is associated with Transform Faults (T) or (F). 20) If magma cools slowly and solidifies beneath surface, it forms into volcanic rocks (T) or (F) 21) If magma erupts and cools quickly at the surface, it forms into plutonic rocks (T) or (F) 22) Basaltic magma has high viscosity (CT) or () 23) Rhyolitic magma has low viscosity (T) or (F) 24) Basaltic magma is associated with violent volcanic eruptions (T) or (F) 25) Rhyolitic magma is associated with peaceful eruptions (T) or (F) 26) Eruption phases are sometimes separated by centuries of inactivity (T) or (F) 27) Only 10% of volcanoes are associated with plate boundaries (T) of (F) 28) The higher the viscosity, the faster the magma flows (T) or (F) 29) The higher the water content of the magma, the more explosive the volcanic eruption (T) or 30) The three V's of Volcanology are Viscosity, Venting, and Volatiles (T) or (F)Explanation / Answer
19) volcanism is not associated with transform fault. Volcanoes are associated with three types of tectonic structures: convergent plate boundaries, divergent plate boundaries and hot spots.
20) If magma cools slowly and solidified beneath earth surface then it is called intrusive igneous Rock.
21) If magma erupts and cool quickly at the surface, it forms into volcanic rocks.
22) Basaltic magma has low viscosity.
23) Rhyolite magma has more viscosity.
24) Basaltic magma is associated with silent volcanic eruption.
25) Rhyolitic magma is associated with violent volcanic eruption.
26) Eruption phase are sometimes separated by centuries of inactivity, it is true.
27) False, only 10 percent volcanoes are not associate with plate boundaries.
28) If magma has high viscosity then its flow slowly.
29) yes it's true.
30) yes it is true.
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