Which of the following is true about particulate pollutants in the troposphere?
They exist in gaseous form
They are responsible for the formation of acid rain
They have a negligible impact on human health
They include mist and fumes
Particulate pollutants in the troposphere include a range of solid and liquid particles, such as dust, smoke, mist, and fumes. These pollutants can have a significant impact on human health, particularly when they are small enough to be inhaled into the lungs. Particulate pollutants can also contribute to the formation of acid rain when they react with other chemicals in the atmosphere.