Exam 14: Water

Rivers constitute ________ percent of the surface water and other freshwater.

Which of the following statements about bottled drinking water is true?

Under aerobic conditions,the carbon in decaying vegetation in a lake ends up primarily as

Water's unique properties,including its high heat capacity,high density,and a solid phase that is less dense than its liquid phase,can best be attributed to

Water commonly exists in large amounts in which of the following physical states?

Describe the phytoremediation of sewage treatment.

VOC stands for ________.

Zeolites are solids and much more easily removed than catalysts that are dissolved in the reaction mixture.

What are two relatively unique physical properties of water? What impact do these properties have on life on Earth?

The volume of water increases as it freezes.

Consumption of water with high levels of nitrate is particularly hazardous to

Acidic water is neutralized when ________ is present.

Each person in the United States flushes approximately 8,000 L of drinking quality water down the toilet each year.

In secondary treatment of sewage,which removes organic matter?

Secondary treatment of wastewater is not effective for removal of

The most serious threat to human health from water supplies is

A concentration of 4.2 mg/L is the same as 4.2 ppb.

A lake that has a foul odor has most likely undergone

Advanced treatment of wastewater can include any of the following EXCEPT

Mesoporous zeolites have pore diameters that are less than 2 nm,while microporous zeolites have pore diameters that are between 2 nm and 50 nm.