Question

question 3
which of the following statement is not correct?
radon is a gas produced from radioactive decay of the element radium - 226
radon occurs in various amounts in most rocks including granite, limestone and basalt.
outdoor concentration of radon are generally high and pose a significant high risk.
indoor radon levels can be reduced by sealing basement walls and proper ventilation
1 pts

Explanation:

Radon is a radioactive gas produced from the decay of radium - 226. It occurs in various amounts in many rocks including granite, limestone, and basalt. Indoor radon levels can be reduced by sealing basement walls and proper ventilation. However, outdoor concentrations of radon are generally low and do not pose a significant high risk.

Answer:

Outdoor concentration of Radon are generally high and pose a significant high risk.