Answer:
The correct answer is option D. "Increasing the house temperature".
Explanation:
Reducing indoor pollution is achieved by a series of practices that help to improve the quality of air within a closed environment. Among the different practices herein proposed, increasing the house temperature is the one that is lest helpful to reduce indoor pollution. In fact, some scientific studies suggest that increasing the house temperature is related to an increase in indoor pollution by the use of heating devices and exposure to the contaminants that they generate.
