Water Pollution

97% of our water is

• salt water

• fresh water

• sewage water

• polluted water

Chemicals that kill crop-destroying organisms are called

• paints

• cleaning supplies

• fertilizers

• pesticides

The water and human wastes that are washed down sinks, showers, and and toilets are called

• garbage

• pesticides

• sewage

• fertilizers

Water that causes erosion picks up

• sediment

• dirt

• fertilizers

• sewage

Most water pollution is the result of natural processes.

• TRUE

• wetlands

• animal burrowing

• human activities

Industry washes agricultural wastes, including animal wastes, fertilizers, and pesticides, into ponds, causing algae to grow.

• TRUE

• Fertilizer

• Rain

• Sewage

Wastes produced by agriculture, households, industry, mining, and other human activities can end up in the water.

• TRUE

• fertilizer

• pesticides

• atmosphere

Fresh liquid water is stored in soil and rock beneath Earth's surface.

• TRUE

• Pesticides

• Sewage

• Groundwater

Most communities treat groundwater before returning it to the environment.

• TRUE

• pesticides

• sewage

• fertilizer

What is the number one water pollutant in PA?

• agriculture waste

• acid mine drainage

• poor sewage treatment

• factory waste