1. Arc volcanoes are found near divergent plate boundaries.
2. Some of the world's classical examples of cone-shaped stratovolcanoes, such as Mount Fuji in Japan, Mayon in the Philippines are Arc volcanoes.
3. Some of the highest volcanoes on Earth are of the Arc type, notably Nevado Ojos del Salado in the Chilean Andes.
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Where Arc Volcanoes Form
Volcanic arcs form at convergent plate boundaries, where one tectonic plate subducts beneath another. As the subducting slab descends into the mantle, water released from it lowers the melting point of the overlying mantle wedge, producing magma that rises and erupts to build a chain (or arc) of volcanoes on the overriding plate.
Evaluating the Statements
- Statement 1: Arc volcanoes are found near divergent boundaries. ✗ Incorrect — they occur at convergent boundaries.
- Statement 2: Mount Fuji (Japan) and Mayon (Philippines) are classic cone-shaped stratovolcanoes of the arc type. ✓ Correct.
- Statement 3: Nevado Ojos del Salado in the Chilean Andes is an arc-type stratovolcano and among the tallest on Earth (Nazca – South American convergent boundary). ✓ Correct.
Correct answer: 2 and 3 only (Option 2).
Similar Questions
- Which one of the following rivers is also known by the name of "Dihang" in Northeast India ?
What is the correct sequence of the following mountain ranges as one moves from North towards South?
- 1. Karakoram
- 2. Kunlun
- 3. Ladakh
- 4. Zaskar
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Important Questions from Drainage System of India
- The Sabarmati river originates from which of the following places?
- What is the total length of the Mahanadi river?
- Which of the following rivers is NOT a tributary of the Ganga but flows directly into the Bay of Bengal?
- Which of the following is the correct order of rivers from west to east in Uttarakhand?
- Through which of the following plateaus does the River Damodar flow?
