Final answer:
Convection in the outer layers of a star, like the Sun, does indeed help mixing and make more hydrogen available for burning. The convective circulation created by the movement of hot gas currents efficiently carries heat outward through the star, impacting the availability of hydrogen for fusion.
Step-by-step explanation:
Convection in the outer layers of a star, such as the Sun, does help mixing and makes more hydrogen available for burning. Convection refers to the movement of hot gas currents that travel up and down through the star. As hot material rises, cool material falls and replaces it, creating a convective circulation. This process efficiently carries heat outward through the star, heating up outer layers and making more hydrogen available for fusion.