1. Answer the following true/false questions. For the questions you answered "false", explain why you believed the statement is false. (2 points for each correct response, which needs to include a correct explanation if you state that the statement is "false". O points for no response. -1 points for an incorrect response and/or an incorrect explanation as to why the statement is "false".) (a) Dry deposition rates depend on the air pollutants' ability to dissolve in water. (b) Fine aerosols refer to particulate matter with aerodynamic diameters larger than 2.5 um (c) Biomass burning is considered both a natural and anthropogenic source of air pollution. (d) The puff model is used to describe the composition of the atmosphere within fixed domains in space through which the air flows. (e) Secondary air pollutants are formed in the atmosphere. (1) The tropopause refers to the boundary between the earth's upper atmosphere and low atmosphere. (@) Temperature always decreases with altitude in the earth's lower atmosphere. (h) Infrared radiation emitted from the sun is usually energetic enough to break chemical bonds in molecules. (1) Fine aerosols are mainly formed from the condensation of less volatile gases onto existing aerosols and from coagulation 6) Long-lived air pollutants are more likely to cause problems on a global scale