Protecting Earth's Resources

Wastewater is _______.

• water that is good for drinking

• water that comes up to your waist

• water that has been wasted

• water that has been used already

A water treatment plant is a facility that cleans wastewater before it is discharged into _______. (Choose all that apply)

• rivers

• sewers

• lakes

• oceans

Air and ______ are added in the water tanks to break down any material left in the wastewater after the first two steps of sterilization.

• salt

• sand

• bacteria

• bleach

Name a few things that can pollute our water?

Why is water such an important resource?

Water stored in the spaces between materials beneath the Earth's surface

• Ground Water

• Surface Water

• Fresh Water

• Sewer Water

Water that is usable by humans for things such as drinking and cleaning

• Sewer Water

• Ground Water

• Surface Water

• Fresh Water

Fresh water found in rivers, streams and lakes on Earth's surface

• Fresh Water

• Surface Water

• Sewer Water

• Ground Water

Resources that are quickly replaced

• Reusable resources

• Roundabout resources

• Renewable resources

• Relative resources

Oil is an example of a ______.

• New resource

• Necessary resource

• Natural resource

• Unnatural resource