Pollution Unit

Smog is an example of ______________ pollution.

• land
• water
• air
• noise

What is a landfill?

• A place for people to recycle
• A place where people's trash is taken
• A place where oil spills begin
• A type of factory

The car is creating ____________________.

• air pollution
• land pollution
• water pollution
• an oil spill

Why is air pollution bad?

• It can make people sick

• It is invisible

• It can make people healthy

The ____________________ protects people from the effects of too much ultraviolet radiation.

• smog layer

• ozone layer

• cloud cover

This type of pollution occurs when man-made chemicals such as hydrocarbons, heavy metals, solvents, get into the soil. These chemicals come from industrial activities and from bad waste disposal. It may cause health risks.

• noise pollution

• soil pollution

• air pollution

• water pollution

Primary and secondary pollutants are types of ________ pollution

• water

• land

• air

• noise

What is a primary pollutant?

• pollutant that is put directly into air by human activities

• pollutants that react with other primary pollutants

What is a secondary pollutant?

• pollutant that is put directly into air by human activities

• pollutants that react with other primary pollutants

Pollution that comes from MANY different places and is hard to identify its source.

• Point

• Non-Point