How can a chemical reaction be sped up?

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expose more of the reactant by increasing the
i need on this asap

it it can increase by stirring, heating, or increasing surface area

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.