Question

which statement best describes the illustration? a mountain forms at a transform boundary. a trench forms at continental - continental convergence boundary. a mountain forms at a divergent boundary. a volcano forms at an oceanic - oceanic convergence boundary.

Explanation:

• Analyze each option:
• Transform boundaries (A) involve lateral sliding, not mountain formation in the way shown (volcanic activity here).
• Continental - continental convergence (B) forms mountains like Himalayas, not trenches (trenches form at oceanic - continental or oceanic - oceanic convergence).
• Divergent boundaries (C) form rifts or mid - ocean ridges, not mountains with volcanic activity as depicted.
• Oceanic - oceanic convergence (D): When two oceanic plates converge, one subducts, and volcanic activity (like island arcs with volcanoes) occurs. The illustration shows volcanic activity, which matches this process.

Answer:

D. A volcano forms at an oceanic - oceanic convergence boundary.