4 Written Questions
3 Multiple Choice Questions
- is a measurement of how acidic or basic it is on a scale of 0 - 14.
- a specific source of pollution that can be identified
- is a measurement of the substances in water besides water molecules.
3 True/False Questions
Sludge → during primary treatment deposits of fine solids settle out from the wastewater
Septic tank → an underground tank containing bacteria that treat wastewater as it passes through
Sewage → that wastewater and the different kinds of wastes in it