1. Which of the following are anthropogenic sources of acid rain?

volcano emissions, lightning, and microbial processes

industrial emissions and other man-made polluters

smokestacks and volcano emissions

microbial processes and fuel combustion

2.Monuments, statues, and bridges are generally not impacted by erosion from acid deposition.

True

False


3.Which of the following are natural causes of acid rain?

volcano emissions, lightning, and microbial processes

industrial emissions and other man-made polluters

smokestacks and volcano emissions

microbial processes and fuel combustion