Water Pollution Quiz

The area of land that drains into the nearest river is called a(n)...

• runoff

• aquifer

• watershed

• valley

Water is stored underground, in a structure called a(n)...

• cavern

• well

• aquifer

• river

Fertilizer, sewage, and animal feces can wash in to water, leading to...

• thermal pollution

• eutrophication

• photosynthesis

• industrial pollution

Waste produced by agriculture, households, industry, mining, and other human activities can end up in ______________.

• groundwater

• streams and rivers

• oceans

• All of these choices

Most water pollution is the result of __________________.

• natural processes
• animal waste
• human activities
• acid rain

The natural process of eutrophication is accelerated when you add...

• phosphates and nitrates

• nitrates and oxygen

• plant nutrients and dish detergent

• oil and heat

Dead zones are characterized by all of the following EXCEPT...

• a reduced number of shellfish

• fish die-off events

• low nitrogen concentrations

• low oxygen concentrations in the water

Which type of pollution can lead to harmful "algal blooms"?

• thermal pollution

• oil spills

• nutrient pollution

• bacteria

Which type of pollution can lead to public swimming areas being closed by the health department?

• thermal pollution

• sediment causing high turbidity

• bacteria

As the temperature of the water increases, the amount of dissolved oxygen in the water:

• increases

• decreases

• stays the same