Acid Rain

What did scientists discover about the rainfall in New Hampshire in 1963?

• It was unusually cold.

• It contained high levels of oxygen.

• It was nearly 100 times more acidic than usual.

• It was unusually warm.

Which compounds make regular rainfall slightly acidic?

• Nitrogen oxides

• Methane

• Sulfur dioxide

• Carbon dioxide

What are the natural sources of sulfur dioxide and nitrogen oxides?

• Earthquakes and tsunamis

• Forest fires and ocean waves

• Solar flares and meteor showers

• Volcanic eruptions and lightning strikes

What was the main strategy used by the U.S. government to reduce sulfur dioxide emissions?

• Implementing 'cap and trade'

• Increasing energy costs

• Banning fossil fuels

• Shutting down power plants

Which countries still struggle with the environmental consequences of acid rain?

• Canada and Mexico

• Russia, India, and China

• Brazil and Argentina

• Australia and New Zealand