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← GeographyWhich mechanism governs lahar directionality flowing from stratovolcanoes?
A)Valley confinement and gravity✓
B)Coriolis effect and Earth rotation
C)Atmospheric pressure differentials
D)Magnetic field alignment forces
💡 Explanation
Valley confinement and gravity dictates lahar flow paths because the potential energy from elevation is converted to kinetic energy, channeling the flow downhill within topographic constraints; therefore direction is predetermined rather than atmospheric or magnetic effects dominating.
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