Air Pollution

Air pollution is contamination of the...

• indoor environment

• outdoor environment

• indoor and outdoor environment

What does "WHO" mean?

• Wild High Ozone

• World Hydrogen Observation

• World Health Organization

Each year air pollution is responsible for nearly...

• Six million deaths

• Seven thousand deaths

• Seven million deaths

Smog is...

• Invisible air pollution

• Visible air pollution

Primary air pollutants can be caused...

• by primary sources

• by secondary sources

• both primary & secondary sources

The sources of air pollution are:

• Animal sources

• Natural and man-made sources

• Primary and natural sources

Man-made sources can be ...

• outdoor pollution sources

• open pollution sources

• outdoor and indoor pollution sources

Methane is ...

• Indoor pollution source

• Outdoor pollution source

Sulfur dioxide is emitted from ...

• Waste in landfills

• The combustion of fossil fuels

• agriculture-related activities

An example of a natural event of air pollution is ...

• An earthquake

• A hurricane

• the eruption of the Vesuvio volcano