Statement 1: The Gaussian plume model assumes variable emission rates and changing meteorological conditions.
Statement 2: In a Gaussian plume model, the concentration of pollutants decreases as the distance from the source increases.
1
Both statements are true.
2
Both statements are false.
3
Statement 1 is true, and Statement 2 is false.
4
Statement 1 is false, and Statement 2 is true.