Problem

Forced convection happens when an external agent (like a fan or blower) actively pushes fluid to move and transfer heat, rather than relying on buoyancy alone. The key insight is recognizing that natural convection depends on density differences caused by temperature, which gravity then acts upon—but forced convection overrides this by mechanically driving the flow. Both statements here are individually true, so you need to check whether the reason actually explains why the assertion is correct.

Forced convection happens when an external agent (like a fan or blower) actively pushes fluid to move and transfer heat, rather than relying on buoyancy alone. The key insight is recognizing that natural convection depends on density differences caused by temperature, which gravity then acts upon—but forced convection overrides this by mechanically driving the flow. Both statements here are individually true, so you need to check whether the reason actually explains why the assertion is correct.