Which of the following is NOT regarded as a pollutant on land or in the air?
Answer Details
Nitrogen is not typically regarded as a pollutant on land or in the air, as it is a natural component of the atmosphere and essential to plant growth. However, excessive use of nitrogen-containing fertilizers can lead to water pollution.
Smoke, noise, and sulfur dioxide are often considered pollutants. Smoke can be harmful to human health and contribute to air pollution. Noise pollution can be harmful to both humans and wildlife, and sulfur dioxide can contribute to acid rain and air pollution.