Question
About 95 per cent of active volcanoes occur at the
Choose your answer from the following codes.
- plate subduction zones
- transform faults
- island arcs
- mid-oceanic ridges
Choose your answer from the following codes.
Answer: Option A
Answer: (a)
Volcanic activity occurs at two types of plate boundaries: mid-ocean ridges and subduction zones.
At mid-ocean ridges, basaltic eruptions produce new sea-floor crust. These underwater eruptions don’t produce big mountainous volcanoes, which is why they are often overlooked as the most volcanically active features on Earth.
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Answer: (a)
Volcanic activity occurs at two types of plate boundaries: mid-ocean ridges and subduction zones.
At mid-ocean ridges, basaltic eruptions produce new sea-floor crust. These underwater eruptions don’t produce big mountainous volcanoes, which is why they are often overlooked as the most volcanically active features on Earth.
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