Acid Deposition & Indoor Air Pollution

What is the pH of normal, unpolluted rain?

• 7

• 5.6

• 4.3

• 7.6

Which compound combines with water vapor in unpolluted rain?

• sulfur dioxide

• carbon dioxide

• nitrogen oxides

• nitrogen gas

Which chemical reaction represents a cause of acid rain?

•  $H_2O\ +\ CO_2\ ->\ H_2CO_3$  

•  $H_2O\ +\ SO_2\ ->\ H_2CO_3$  

•  $H_2O\ +\ NO_2\ ->\ H_2SO_4$  

•  $H_2O\ +\ SO_2\ ->\ H_2SO_4$  

Which primary pollutant contributing to acid deposition is generated by coal power plants?

• VOCs

• NO_x

• SO₂

• CO₂

What is the primary source of nitric oxide & nitrogen dioxide to the atmosphere?

• coal power plants

• dry cleaners

• natural sources from volcanoes

• vehicle exhaust

Which type of fossil fuel contains high amounts of sulfur?

• Coal

• Natural gas

• Petroleum

• Diesel fuel

Which mineral would you add to a lake to neutralize acidic conditions (increase the pH)?

• Acetic acid

• Calcium carbonate

• Ammonia

• Bleach

Most fish cannot survive water with a pH lower than

• 7.5

• 6.0

• 5.5

• 4.5

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The two secondary pollutants causing acid deposition are

• sulfuric acid & nitric acid

• sulfur dioxide & nitrogen oxides

• sulfur dioxide & carbon dioxide

• sulfuric acid & carbonic acid

Impacts of acid deposition include

• leaching of aluminum into soils

• increase in photosynthetic activity for aquatic plants

• increases in aquatic biodiversity

• physical damage to leaves & bark of trees

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