Q: What are some uses of chlorine gas?


Read this paragraph and choose the correct option from the provided answers:

You may be able to avoid some of the health effects of outdoor air pollution by staying indoors on high-pollution days. However, some indoor air is just as polluted as outdoor air.

 Choices:

- washing hands

- fueling airplanes

- rooting plant cuttings

- cleaning, disinfecting and in swimming pools


A:
cleaning, disinfecting and in swimming pools