Water Pollution Warm Up Questions

What event occurred on July 19, 2008, in Saskatoon?

• A large sewage spill into the South Saskatchewan River

• A chemical power plant explosion in South Saskatchewan

• A major oil spill in the South Saskatchewan River

• A devastating fire in the South Saskatchewan forest

How much sewage was estimated to have spilled into the South Saskatchewan River?

• 60 million liters

• 10 million liters

• 100 million liters

• 5 million liters

What was the cause of the sewage spillage into the South Saskatchewan River?

• A broken sewage pipe

• Heavy rains and debris plugging the screen

• An earthquake

• A power outage

What percentage of Earth's water is in river systems and freshwater lakes?

• 0.01%

• 1%

• 10%

• 0.1%

What is a water contaminant?

• Any substance that is not water

• Only chemical substances

• Only biological substances

• Only physical substances

Which of the following is an example of chemical pollution?

• Pesticides applied to crops

• Excess nutrients from fertilizers

• Heated water from a power plant

• Sediment increase due to a landslide

What is an example of organic pollution?

• Lawn fertilizers containing nitrogen and phosphorus

• Acid rain from factories

• Heated water from industrial processes

• Saltwater intrusion from high tides

What does thermal pollution cause?

• Increase or decrease in water temperature

• Introduction of toxins into water

• Excess nutrients in water

• Natural sediment increase

Which type of pollution occurs without human intervention?

• Ecological Pollution

• Chemical Pollution

• Organic Pollution

• Thermal Pollution

How can ecological pollution occur?

• Adding something to an ecosystem that is not usually there

• Releasing heated water into a river

• Applying pesticides to crops

• Adding excess nutrients to water