A chain of volcanoes generally forming an arc shape is called what?

• A. Island arc
• B. Intensive production
• C. Intercropping
• D. ITCZ

Answer: (A)

This is about a volcanic landform created at tectonic plate boundaries. A chain of volcanoes that curves to form an arc happens where one oceanic plate subducts beneath another. The melting of the subducting slab generates magma that rises and erupts along the boundary, producing volcanoes that line up in a curved arc parallel to the trench. That curved chain of volcanoes is called an island arc.

Examples like the Aleutian Islands or the Japanese archipelago illustrate this arc pattern, linking the concept to real-world geology.

The other terms don’t fit because they refer to farming methods (intensive production, intercropping) or a climate zone (ITCZ), not volcanic chains.