Septic tanks are underground tanks that store waste for bacteria to kill as it passes through.
100
How can chemical toxic wastes be produced?
Through manufacturing and chemical pollution.
100
Who burns oil or coal from engines of vehicles?
Factories and power plants
100
Where can heat pollution occur?
In factories
200
What does water treatment kill?
Water treatment kills the majority of bacteria found, although some viruses and parasites are able to resist chlorine an other types of water treatment procedures.
200
What happens if a septic tank is close to a stream or a hill?
If a tank is too close to a stream or hill wastewater can flow into the stream or flow downhill into the area of the well.
200
Where do point sources of chemical pollution come from?
Factories
200
What is one cause of smoke and exhaust?
Burning coal or oil to help fuel processed can cause smoke and exhaust.
200
What can cause heat pollution?
Warm water used to cool machinery
300
What are the effects of dumping sewage in water
By dumping sewage into drinking water it can spread disease.
300
Wastes from what animals can become a problem?
Wastes from cattle, pigs and chicken can become a problem in rural areas.
300
What are the causes of point source chemical pollution?
Factories releasing toxic chemicals into rivers and lakes nearby.
300
What is another cause of smoke and exhaust?
Engines from vehicles that burn gasoline.
300
Where does heated water release into?
Nearby rivers or ponds
400
What is the purpose for having sanitary sewers?
Sanitary sewers are sewers that carry sewage away to wastewater treatment plants.
400
Where can wastes runoff from?
Animal waste can runoff from pastures and barnyards.
400
Where do non-point sources of chemical pollution come from?
Industries
400
What causes acid rain?
Gases from pollutants
400
What can happen when heated water is released into bodies of water?
An increase in the temperature of water
500
What are the harmful effects of sanitary sewers?
When heavy rains and floods occur sewers can overflow and run into storm sewers. Sewage from sanitary sewers can pollute surface water from the storm sewers.
500
What are the effects of animal waste runoff?
The effects of animal waste runoff are passing disease causing bacteria and other pollution into bodies of water.
500
What are the causes of non-point chemical pollution?
When industries store toxic wastes in barrels and other containers that are eventually buried underground.