Which of these is a naturally occurring radioactive gas that emanates from rocks, soil, and water and can cause lung cancer?

Rationale

Radon is a naturally occurring radioactive gas that emanates from rocks, soil, and water and can cause lung cancer.

Radon is a colorless, odorless gas produced from the natural decay of uranium and is known for its health risks, particularly its link to lung cancer when inhaled over time.

A (Chlordane) YOUR ANSWER

Chlordane is a synthetic pesticide that was widely used in agriculture and for termite control but is not a naturally occurring gas. It is not related to radioactive decay and poses different health risks, primarily through exposure rather than inhalation of a gas.

B (Carbon monoxide) YOUR ANSWER

Carbon monoxide is a colorless, odorless gas produced by the incomplete combustion of fossil fuels. While it can be harmful and even fatal in high concentrations, it is not radioactive and does not emanate from natural geological sources like radon does.

C (Chlorofluorocarbons) YOUR ANSWER

Chlorofluorocarbons (CFCs) are synthetic compounds used primarily in refrigeration and aerosol propellants. They are not naturally occurring gases and have been linked to ozone depletion rather than to lung cancer or radioactivity.

D (Radon) CORRECT

Radon is the only option that correctly identifies a naturally occurring radioactive gas. It is released from the decay of uranium found in soil and rocks and is known for its potential to cause lung cancer when accumulated in homes or buildings.

Conclusion

Radon stands out as the only naturally occurring radioactive gas among the options provided, with significant health implications due to its ability to accumulate indoors and increase lung cancer risk. The other choices, being synthetic or non-radioactive gases, do not share this critical characteristic. Understanding the dangers of radon exposure is vital for health and safety, especially in areas with high natural uranium content.

Which of these is a naturally occurring radioactive gas that emanates from rocks, soil, and water and can cause lung cancer?

Radon is a naturally occurring radioactive gas that emanates from rocks, soil, and water and can cause lung cancer.

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