Managing Our Water Systems - Section 11.3 Quiz

What is the journey wastewater takes, starting at your kitchen sink drain?
1. Drain pipe, larger underground pipe, pumping station, treatment plant, stream, lake or ocean
2. Drain pipe, larger underground pipe, treatment plant, pumping station, stream, lake or ocean
3. Drain pipe, larger underground pipe, treatment plant, stream, lake or ocean
4. Drain pipe, larger underground pipe, pumping station, treatment plant
What is not part of what happens to waste water in a septic tank system?
1. The bottom layer of the tank's contents are pumped out into the soil
2. Bacteria break down waste
3. Light materials like kitchen grease float to the top of the tank
4. Solid waste sinks to the bottom of the tank
What is responsible for destroying contaminants in a septic tank system?
1. Bacteria
2. Bleach
3. Iodine
4. Boiling (heat)
What is not a method of purifying water?
1. Desalination plant
2. Wetland technology
3. Wastewater treatment plant
4. Septic tank system
In a wetland, what filters out contaminants?
1. Roots and soil
2. Sunlight
3. Pebbles
4. Small fish
What is a potential problem with wastewater treatment plants?
1. They are extremely expensive
2. They cannot remove large pieces of waste from water
3. They heat wastewater and this can destroy wildlife
4. They break down water so that we slowly lose some of our fresh water supply
In which part of a wastewater treatment facility do small particles of waste settle out?
1. Grit chamber
2. Primary treatment tank
3. Aeration tank
4. Chlorine treatment
What is sludge?
1. Residual semisolid waste material left from wastewater treatment
2. Grey effluent containing microorganisms and protozoa
3. Large waste particles and pieces of garbage
4. Small pebbles and sand that filter out contaminants
What is not a potential threat to our sources of drinking water?
1. Wetlands
2. Farmland runoff
3. Factories
4. Power stations
What is not a potential hazard of runoff from farmland to our fresh water supply?
1. Warm water
2. Fertilizers
3. Pesticides
4. Herbicides