Which gas can be accumulated in poorly ventilated buildings:

🧠 Explanation:

Radon, a radioactive gas, can accumulate in poorly ventilated buildings, posing health risks like lung cancer. Naturally occurring from uranium decay in soil, it seeps into structures, especially basements. Monitoring and ventilation mitigate its dangers. Understanding radon is crucial in environmental health and building safety, guiding regulations for indoor air quality. Its study highlights the importance of environmental science in public health, emphasizing preventive measures against invisible hazards in homes and workplaces, a key topic in health and safety management.