Question
Consider the following geological phenomena :
- Development of a fault
- Movement along a fault
- Impact produced by a volcanic eruption
- Folding of rocks
Answer: Option B
Answer: (b)Earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) surface. Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes.Such earthquakes can serve as an early warning of volcanic eruptions, as during the Mount St. Helens eruption of 1980.
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Answer: (b)Earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) surface. Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes.Such earthquakes can serve as an early warning of volcanic eruptions, as during the Mount St. Helens eruption of 1980.
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