Unit 8 Review

Type of aquatic ecosystem that was once viewed as wasteland and drained by the government

• estuaries

• coral reefs

• open ocean

• wetlands

Aquatic ecosystem that serves as a nursery for many species and suffers from pollution from city harbors like the Chesapeake Bay

• estuaries

• coral reefs

• open ocean

• wetlands

Presence of fecal coliform bacteria suggests that

• a factory polluted the river

• a nearby treatment plant added chlorine to the waste water

• the water is safe for drinking

• untreated animal waste contaminated the water

Which of the following describe the relationship between D.O. and B.O.D.?

• When D.O. decreases, the B.O.D. decreases

• When D.O. decreases, the B.O.D. increases

• When B.O.D. decreases, the D.O. decreases

• When B.O.D. increases, the D.O. decreases

The process of human activities in urban or agricultural areas that load nutrients into surface bodies of water is known as

• artificial fertilization

• cultural eutrophication

• thermal pollution

• lake stratification

• synthetic primary productivity

The federal legislation that sets standards for wildlife and recreation in surface bodies of water in the US

• Water Quality Act

• Clean Water Act

• Pollution Prevention Act

• National Environment Policy Act

• Safe Drinking Water Act

Which water quality test will best determine the disruption of photosynthesis caused by cloudy water conditions from sedimentation?

• Temperature

• Salinity

• Dissolved oxygen

• pH

• Turbidity

Which of the following is a point-source pollutant?

• Sediment loading from erosion

• Runoff of pesticides from croplands

• Animal wastes from feedlots

• Fertilizer runoff from urban areas

• A sewage treatment plant effluent pipe

Stronger regulations for coal-burning power plant emissions are likely to reduce which of the following aquatic pollutants?

• Arsenic

• DDT

• Mercury

• Atrazine

Mine site drainage can often cause this:

• Cultural eutrophication

• Acidic runoff

• Land subsidence

• Saltwater intrusion