Smoke, or fume, is a visible suspension of fine solid particles and liquid droplets in the air. It is produced when materials burn, such as wood, coal, or fossil fuels. The composition of smoke varies depending on the material being burned and the conditions of combustion, often containing harmful chemicals and pollutants. Smoke can have significant effects on health and the environment. Inhaling smoke can lead to respiratory issues and other health problems. Additionally, smoke contributes to air pollution, which can harm wildlife and ecosystems. Understanding smoke is essential for managing its impact on public health and the environment.