Advanced Radon Measurement Practice Test 2025 – Complete Exam Preparation

Radon is indeed a colorless, odorless gas that is produced naturally from the decay of uranium in soil and rock. However, it is classified as a heavy gas rather than a light gas. As a heavy gas, radon does not tend to rise and accumulate in high areas of houses, such as attics. Instead, it typically collects in lower areas of buildings, particularly in basements and crawl spaces, where it seeps in from the ground.

This characteristic behavior of radon is crucial for understanding how to effectively measure and mitigate radon levels in homes. Radon can accumulate in enclosed spaces, posing health risks if not properly managed, but is less likely to concentrate in high, open areas like attics due to its density and the behavior of gases. Thus, the statement is false, and the correct choice reflects this understanding of radon's properties and behavior in residential structures.