This is similar to study guide question 52. Aerosols are increased for various reasons. First, plowing land to make it more fertile and easier to plant will loosen soil, encouraging erosion which puts particulate matter into the air. The answer is c. Cigarette smoldering increases the production of particulate matter, not methane. Carbon dioxide is produced by cigarettes, but does not cause ozone depletion.
Photochemical smog requires large quantities of sunlight, which are absent in bars and restaurants.
This is similar to study guide question 56. 5. The answer is a. This is a basic question on factual information, and is also study guide question 49. Answers to this question must include an explanation of HOW your alternate reason will cause the same results described. Increases in people impacted by coastal flooding can be due to an increase in human population which forces more people to live near the coast, an increase in development along the coast due to the social status associated with beachfront property, and greater erosion of the coastline which causes houses to be closer to the shoreline over time.