Water Unit Test

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

Tags

NGSS.MS-LS1-6

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

Which of the following would most likely cause metabolic stress in aerobic lake organisms?

• Variation in conductivity

• Dissolved oxygen levels at or below 2 ppm

• Influx of dissolved solids

• A 1 to 2 -degree change in water temperature

• An increase in pH from 6-7

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

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

• Arsenic

• DDT

• Mercury

• Atrazine

Tags

NGSS.MS-ESS3-3

Which of the following river conditions would yield the highest dissolved oxygen content?

• Fast-moving cold water, large amounts of submerged vegetative biomass

• Stagnant, warm water with large clumps of algae

• Slow- moving warm waters, low amounts of submerged vegetative biomass

• Warm water with little vegetative biomass

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Aquatic ecosystem that has a mix of fresh and salt water and serves as a nursery for many species. An example is 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

Tags

NGSS.MS-LS1-5

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

Tags

NGSS.HS-LS2-3