Radon is___________?
Correct answer: B. radio active gas
- A. germon radio
- B. radio active gas
- C. artificial fibre
- D. an explosive
Explanation
Radon is a naturally occurring radioactive noble gas produced during the decay of uranium in rocks and soil. It can accumulate indoors and increase lung-cancer risk after prolonged exposure.
Last updated
Related questions
The ozone layer is found in which layer of the atmosphere?
Pedology is study of ___________?
There are many different types of frozen water on Earth. Collectively, they are known as the: ___________?
The sky appears blue because the earth's atmosphere __________?
Which one of the following is the main culprit in the thinning of Ozone layer in the earth's stratosphere?