Environmental Science Air Pollution & Climate

A greenhouse gas that is exclusively anthropogenic (from human activity)

• water
• carbon dioxide
• ozone
• CFCs

The most abundant nonanthropogenic (non-human activity; caused by nature) greenhouse gas

• water vapor
• ozone
• methane
• CFCs

A greenhouse gas that, in the lower troposphere, is formed by photochemical (reaction with the sun) reactions

• water vapor
• carbon dioxide
• methane
• ozone

Most often cited as what causes acid deposition (acid rain) 

• sulfur dioxide
• lead
• ozone
• carbon dioxide

Considered harmful in the troposphere but beneficial in the stratosphere     

• sulfur dioxide
• lead
• ozone
• carbon dioxide

Global climate change occurs because increasing concentrations of greenhouse gasses in

• troposphere absorbs outgoing heat radiation
• stratosphere absorbs outgoing heat radiation
• troposphere absorbs incoming UV radiation
• stratosphere absorbs incoming UV radiation

Which of the following is a greenhouse gas that is produced by domestic livestock?

• nitrogen oxide
• methane
• carbon monoxide
• sulfur dioxide

The three main anthropogenic (human-caused) sources of gaseous air pollutants in the United States are

• Soil erosion, volcanoes, and forest fires
• Soil erosion, volcanoes, and energy production
• Industry, construction, and agriculture
• Industry, transportation, and energy production

Ozone in the stratosphere is most important to life at Earth’s surface because it absorbs

• gamma rays
• microwaves
• UV radiation
• visible light

Which of the following actions would reduce global greenhouse emissions?

• Increasing the use of automobiles
• Decreasing the number of nuclear power plants
• Replacing coal-burning power plants with wind farms
• Converting tropical forests to rice paddies