Which of the following is the heaviest gas?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Radon.
- Radon is a naturally occurring radioactive gas which may be found in high concentrations in indoor environments, such as homes and workplaces.
- Radon is one of the leading causes of lung cancer.
- Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon level and smoking prevalence.