7.7 - Acid Deposition

Which two primary pollutants are the main precursors of acid rain?

• Carbon dioxide and methane

• Nitrogen oxides (NOx) and sulfur dioxide (SO₂)

• Volatile organic compounds and lead

• Carbon monoxide and ozone

The main source of sulfur dioxide (SO₂) emissions is:

• Gasoline powered vehicles

• Natural gas power plants

• Coal-fired power plants

• Solar panels

The largest source of nitrogen oxide (NOx) emissions comes from:

• Diesel trucks

• Passenger cars

• Airplane exhaust

• Agricultural fields

Acid rain was significantly reduced in the U.S. after which major environmental law?

• Clean Water Act

• Clean Air Act

• Endangered Species Act

• Safe Water Drinking Act

SO₂ and NOx form which two secondary air pollutants that cause acid rain?

• Ozone and methane

• Carbon monoxide and sulfur trioxide

• Sulfuric acid and nitric acid

• Hydrogen peroxide and hydrochloric acid

Which nutrient becomes less available to plants when acid deposition leaches soil nutrients?

• Carbon

• Nitrogen

• Calcium

• Oxygen

High soil acidity can increase the solubility of which toxic metal?

• Lead

• Mercury

• Aluminum

• Iron

Which natural substance can be added to acidic soils to neutralize them?

• Sand

• Limestone

• Clay

• Peat moss

Which technology is designed to trap sulfur dioxide before it exits a smokestack?

• Solar panels

• Scrubbers

• Catalytic converters

• Electrostatic precipitators