Unit 7 Practice Questions

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A paper company located on the banks of a river discharges its treated wastewater into the river. Which of the following would be the best control group to evaluate the treated wastewater from the paper company? - A sample of water downstream from the same river - A sample of water upstream from the same river - A sample of distilled water - A sample of water from a nearby river

A sample of water upstream from the same river

A paper company located on the banks of a river discharges its treated wastewater into the river. Which of the following would be the best location to obtain a water sample from to determine if the paper plant is affecting the acidity of the river? - At an upstream tributary to the river - Immediately downstream from the paper plant - Immediately upstream from the paper plant - At a downstream tributary to the river

Immediately downstream from the paper plant

Over a three-year period, a city's environmental protection department measured the particulate matter (PM2.5) in a ten-square-mile area around one of the city's coal-fired power plants. The annual mean level of PM2.5 measured was 20.0μgm3 over the three-year study period. The National Ambient Air Quality Standard (NAAQS) for PM2.5 is an annual mean level of 12.0μgm3, averaged over three years. The city instructs the manager of the power plant to propose a plan to aid the city in meeting the NAAQS for PM2.5 in the area around the power plant over the next ten years. Which of the following would be the most effective plan for the manager to propose to the city? - Burn lignite coal instead of bituminous coal at the plant. - Install electrostatic precipitators at the plant. - Install catalytic converters at the plant. - Install vapor recovery nozzles at the plant.

Install electrostatic precipitators at the plant.

Which of the following is the best example of a point source pollutant? - Parking lot - Golf course - Farm field - Oil tanker spill

Oil tanker spill

An engineer is assigned the task of reducing the air pollutants being released from a power plant that generates electricity by burning coal. The engineer performs a variety of computer simulations to determine which techniques and methods would be most effective at reducing air pollution generated by the plant. The air pollutant that computer simulations would likely show as being the most reduced by the installation of baghouse filters in exhaust systems - Carbon monoxide - Sulfur dioxide - Particulate matter - Carbon dioxide

Particulate matter

An engineer is assigned the task of reducing the air pollutants being released from a power plant that generates electricity by burning coal. The engineer performs a variety of computer simulations to determine which techniques and methods would be most effective at reducing air pollution generated by the plant. The air pollutant that computer simulations would likely show as being the most reduced by the installation of electrostatic precipitators in exhaust systems - Particulate matter - Carbon monoxide - Carbon dioxide - Sulfur dioxide

Particulate matter

Scientists have been monitoring CO2 in the atmosphere from Mauna Loa in Hawaii since 1958. Which of the following units is used by scientists to measure CO2 in the atmosphere? - Dobson units - Parts per million - pH - Percent saturation

Parts per million

An engineer is assigned the task of reducing the air pollutants being released from a power plant that generates electricity by burning coal. The engineer performs a variety of computer simulations to determine which techniques and methods would be most effective at reducing air pollution generated by the plant. The air pollutant that computer simulations would likely show as being the most reduced by the use of fluidized-bed combustion in the boiler furnaces - Sulfur dioxide - Carbon dioxide - Carbon monoxide - Particulate matter

Sulfur dioxide

A paper company located on the banks of a river discharges its treated wastewater into the river. Which of the following water quality indicators should be measured to best determine if the wastewater is increasing the acidity of the river? - The species richness - The total suspended solids - The amount of hydrogen ions - The amount of dissolved oxygen

The amount of hydrogen ions

Which of the following sources should be examined in a study to determine the impact of a geologic source on levels of CO2 in the atmosphere? - Cellular respiration - Photosynthesis - Volcanoes - Decomposition

Volcanoes

For the air layers in normal atmospheric conditions, the correct labeling from the air layer closest to the Earth's surface to the one farthest from the Earth's surface would be - warm air, cool air, cooler air - cooler air, warm air, cool air - cool air, cooler air, warm air - cooler air, cool air, warm air

warm air, cool air, cooler air


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