AP Environmental Sciencemediummcq1 pt
The best way to reduce indoor radon is
A.venting soil gas from beneath the foundation
B.burning scented candles
C.painting the walls
D.closing all windows
Explanation
Core Concept
Sub-slab depressurization pipes radon outside before it enters — the standard, effective mitigation.
Correct Answer
Aventing soil gas from beneath the foundation
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