True or False: Radon is a significant health risk in homes around the world.

Radon is indeed a significant health risk in homes around the world, primarily because it is a colorless, odorless gas that can accumulate in indoor environments without being detected. It is produced naturally from the decay of uranium in soil, rock, and water and can seep into homes through cracks in floors, walls, and foundations.

Research has demonstrated that prolonged exposure to elevated radon levels increases the risk of lung cancer, making it a serious public health concern. The World Health Organization (WHO) and various health agencies emphasize the importance of testing for radon, particularly in areas known to have higher concentrations, to ensure the safety and wellbeing of residents.

Given these factors, the statement is true as it reflects the established understanding of radon's health risks and the need for awareness and mitigation efforts globally.