Clean Water Quiz

What is a major source of water pollution in the Tualatin River?

Farm animals

Runoff from rain and watering

Pesticides and insecticides

Nitrous oxide

How much water should be used on your lawn?

Until water covers the blades

1 hour, twice daily

25 gallons

One inch per week

Which of the following are stream-friendly locations to wash your car? (select all that apply)

Your driveway

The street

Your lawn

Under bridges, protected from rain

A local car wash

How do native plants protect the watershed? (select all that apply)

They’ve adapted to the area and need less water and maintenance

Reduce water pollution

Limit stormwater runoff

Wildlife prefers native plants

Submit