Answer :
Final answer:
Lack of adequate ventilation in a dwelling primarily leads to poor indoor air quality and can facilitate mold growth, resulting in potential health problems for the occupants.
Explanation:
The danger of having too little ventilation in a dwelling is that it can lead to poor indoor air quality. This, in turn, can cause several health-related problems. In particular, inadequate ventilation can increase indoor humidity, which facilitates mold growth. Mold can release allergens and irritants into the air, potentially causing allergic symptoms and other adverse health effects in sensitive individuals. Furthermore, high levels of indoor air pollutants are associated with insufficient ventilation, as it does not allow for enough outdoor air to dilute emissions from indoor sources or for indoor air pollutants to be carried out of the home. Considering that most people spend a large percentage of their time indoors, maintaining good indoor air quality by ensuring proper ventilation is crucial for health and wellbeing.