7.6-7.8 Quiz

What location in the US would most likely receive acid deposition?

A town downwind from a coal-fired power plant

What would be the strongest evidence in support of a scientist's contention that a local area was experiencing acid deposition?

An increase in the concentrations of soluble heavy metals in a local pond

Describe the use of baghouse filters in exhaust systems.

Baghouses utilize fabric filter bags to receive dusty gas from process sources, capture the particulates, and then exhaust clean air.

The primary cause of acid precipitation in the northeastern United States is what?

Burning of sulfur-containing fossil fuels to produce electricity

Catalytic converters reduce which of the following pairs of pollutants in car exhaust? a) Carbon dioxide and ozone b) Carbon monoxide and hydrocarbons c) Carbon dioxide and particulates d) Lead and mercury e) Methane and particulates​

Carbon monoxide and hydrocarbons

What is primarily responsible for acid rain in the northeast United States?

Coal

Describe an environmental disadvantage of using industrial scrubbers and electrostatic precipitators for pollution abatement.

Coal ash contains toxic levels of several different pollutants, so when it is collected and stored long-term in coal ash ponds, there is increased risk of exposure to toxic metals.

What would be the most likely effect of acid deposition on a northern forest?

Decreased ability of trees to withstand cold weather

Describe the use of fluidized-bed combustion in the boiler furnaces

Fluidized bed combustion is used to burn solid fuels. Fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials

Describe the use of electrostatic precipitators in exhaust systems.

It uses an electric charge to remove certain impurities—either solid particles or liquid droplets—from air or other gases in smokestacks and other flues.

Bats use echolocation to find prey by emitting high-pitched bursts of sound and analyzing the reflection.Scientists studying a population of bats in a forest observed that their population size had declined in the years following the completion of a nearby highway.Based on the information above, describe how noise pollution from the highway has affected the size of the bat population?

Noise pollution has a negative impact of wildlife activities such as mating, establishing territories and predator-prey interactions

What is the major pollutant that electrostatic precipitators are designed to remove from power-plant smokestack emission?

Particulates

What actions would be the most effective in decreasing acid rain and acid deposition problems?

Reducing use of fossil fuels

What is true about noise pollution?

Sudden or persistent noise may lead to permanent hearing loss.

Acid rain is associated with what?

Sulfur

Most often cited as the causative factor for acid deposition?

Sulfur dioxide

What is an important precursor to acid rain?

Sulfur dioxide

Acid deposition would most likely result in what?

The release of aluminum ions from the soil.

How do we reduce SO2 emissions from coal-burning power plants?

Wet-scrubber units