"Polluted" refers to the contamination of the environment by harmful substances, which can negatively impact air, water, and soil quality. Common pollutants include chemicals, waste products, and noise, often resulting from human activities such as industrial processes, transportation, and agriculture. Pollution can lead to serious health issues for humans and wildlife, as well as damage to ecosystems. For example, air pollution can cause respiratory problems, while water pollution can harm aquatic life and make drinking water unsafe. Addressing pollution requires collective efforts to reduce emissions, manage waste, and promote sustainable practices.