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← Nature & AnimalsWhich airflow consequence occurs when thermals expand during soaring?
A)Updraft speed increases lift generation✓
B)Wingtip vortices destabilize lateral control
C)Boundary layer separates stalling feathers
D)Induced drag offsets thrust production
💡 Explanation
Updraft speed increases lift generation because thermals cause atmospheric expansion, driving convection. Thermal soaring uses thermal convection rather than other aerodynamic effects. Therefore, increased lift occurs rather than vortex shedding or boundary separation, because convection changes airspeed.
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