How does driving cars pollute the Bay?
Cars run on gasoline. When gasoline is burned, it emits (or gives off) gases like hydrocarbons, nitrogen oxides, carbon monoxide, and carbon dioxide. Some of these gases get into the air and cause acid rain. It is also believed that the gases cause temperatures around the world to rise. When it rains, the gases can get washed into the Bay. The chemicals in these gases can make fish sick and make algae grow out of control. The gases can also make humans sick.