Fact 1: If something is outside during the day then that something will receive sunlight. Fact 2: Chlorine is dissipated rapidly by sunlight. Given the two facts above, what make chlorine dissipate rapidly?

Choose your answer from: (i). being kept in the dark (ii). local weather changes (iii). fissures of hot, acidic water (iv). being outside at night (v). being outside during the day (vi). circulatory systems (vii). being contained in a bottle (viii). The bending of a ray of light
Answer:
(v).