The biochemical oxygen demand (BOD) is defined as:

the amount of oxygen required for biochemical decomposition processes

the amount of oxygen required by humans who use a water supply

the amount of oxygen needed by plants growing in a water source

the amount of oxygen given off by a specific water source

Which of the following is not usually associated with eutrophication?

increased heavy metal concentrations

reduced photosynthesis in the water column

The “dead zone” in the northern Gulf of Mexico consists of a large ocean area depleted in ___. This problem appears to be caused by ___.

oxygen; nitrogen from agricultural runoff

marine microorganisms; ozone depletion

Which best describes leaching

water flows through soil, landfills, or other areas dissolving materials and carrying it with the water to lower levels

Acid rain is formed when water flows through a coal mine

A friend constantly borrows money but never pays it back

In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river due to

increasing bacterial activity as organic matter decays

increasing populations of mayfly and stonefly larvae

decreasing bacterial activity as turbidity increases

E-waste can be especially harmful due to

the heavy and toxic metals that can be released

the size and weight of most e-waste items

wildlife eating it and becoming ill or dying

the single-use "throw-away" design of most e-waste products

What helps protect against leachate getting into groundwater in sanitary landfills?

a layer of gravel between the MSW and soil

the soil cap that covers the landfill after it reaches capacity

has been reduced by the use of cooling towers

is primarily a problem in the winter

is not regulated in the United States

Water Pollution

Authored by Amy Napoles

Other, Other Sciences

9th - 12th Grade

Used 38+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Mine site drainage can often cause this:

Cultural eutrophication

Acidic runoff

Land subsidence

Saltwater intrusion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a non-point source of water pollution

Effluent from a sewage treatment plant

BP refiner in Indiana discharging ammonia in a river.

Runoff of pesticides from regional farms into the Illinois River.

Hot water discharges from a nuclear power plant.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Increased use of inorganic (lab-made) fertilizers on crops contributes to:

Hypoxia in the Gulf of Mexico

Increase in storm severity in southeastern U.S.

Water shortages in California

Saltwater intrusion on the East Coast.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is a persistent inorganic pollutant that can impair neurological functioning?

Lead

DDT

PCB's

Atrazine

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Strategies used to clean up oil spills include all of the following EXCEPT:

Floating booms and boats to skim floating oil toward collectors

Skimmers to absorb oil from the water

Addition of limestone to neutralize the acidic water

Chemical dispersants that break up the oil and help it to sink.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the main source of mercury in the Great Lakes?

Leaky landfills

Coal-burning power plants

Sewage effluent

Automobile emissions

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which pollutant or pollutants are most likely to create eutrophic areas?

nitrates and phosphates

heavy metals

synthetic organic compounds

pharmaceuticals

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Water Pollution

Mine site drainage can often cause this:

Which of the following is a non-point source of water pollution

Increased use of inorganic (lab-made) fertilizers on crops contributes to:

Which of the following is a persistent inorganic pollutant that can impair neurological functioning?

Strategies used to clean up oil spills include all of the following EXCEPT:

What is the main source of mercury in the Great Lakes?

Which pollutant or pollutants are most likely to create eutrophic areas?

What is the first step in the water treatment process?

an underground tank containing bacteria that treat waste water is a

The biochemical oxygen demand (BOD) is defined as:

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