Water Pollution Test

How much of water on Earth is FRESH SURFACE water?

• 3%

• 97%

In industrial water use, what is most of it used for?

• Cooling power plants

• Making goods

People cut down a large number of trees'

Which environmental problem does it refer to?

• water pollution

• deforestation

• air pollution

• global warming

What are the two main problems with water?

• overuse and pollution

• frozen and too salty to drink

• too many fish and pollution

• color and taste

Why were city officials changing the water source in Flint in the spring of 2014?

• To save money

• To find cleaner water

How did city officials change the water supply for the city of Flint in the spring of 2014?

• Switched FROM Detroit Water supply (Lake Huron) to the Flint River

• Switched FROM the Flint River to the Detroit Water supply (Lake Huron)

• Switched FROM the Detroit River to the Flint River

• Switched FROM the Flint River to the Detroit River

What were the FIRST two problems detected by the city officials the summer after the switch? (check all that apply)

• pH was too low

• Foul smelling and discolored water

• E. coli bacteria was in the water & people were getting sick

• Lead was in the water & children were getting sick

The new water was eventually found to have extremely high levels of lead. Where was it coming from?

• The pipes used to transport the water

• The General Motors factory

Which of these are health effects of lead poisoning? (Select all that apply)

• brain damage and mental retardation in children

• organ damage

• increased behavior problems and mental illness

• Excessive growth in limbs

What is a safe level of lead in drinking water, according to the EPA?

• 5ppm

• 150ppm

• 15ppm

• 100ppm