Pollution

Source of carbon monoxide

• Incomplete combustion of fossil fuels

• Combustion of fossil fuels

• Decomposition of plant and animal matters

• Photochemical reaction of CO₂

What is a primary pollutant? 

• pollutant that is put directly into air by human activities
• pollutants that react with other primary pollutants

A type of pollution found both indoors and outdoors, which includes pollen, dander, soot, carbon, and dust.

• Water droplets

• Allergens

• Particulate matter

• Combustibles

Which of the following is NOT a primary pollutant?

• nitric oxides

• smog

• sulfur dioxide

• volatile organic compounds

Which pair below are the two main sources of air pollution in urban (populated) areas?

• vehicles, volcanoes

• vehicles, industries

• Industries, agriculture

• All of the above

Which is true of air pollution and human health?

• Years of research link air pollution to lung diseases, birth defects, and cancer

• Air pollution is commonly listed as a cause of death.

• None of the health effects of air pollution are reversible.

• Healthy adults are most affected by air pollution.

What causes acid rain?

• High concentrations of sulfuric or nitric acid from pollution
• Fertilizer use
• Pesticide use
• CFCs

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat

Global warming is due to 

• Greenhouse gases
• Nitric and sulfuric acids
• CFCs
• Ozone depletion

Greenhouse gases, in moderate amounts, keep the Earth's temperature stable

• True
• False