A/An ________ is a device designed to remove particles and pollutant gases
A) tall stack B) boiler C) coal washer D) scrubber E) air filter
Answer: D
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Many people hear about atmospheric ozone depletion and wonder why we don't simply replace that which has been destroyed. Knowing about CFCs and how catalysts work, explain how this would not be a lasting solution.
A. Governments would be too slow to respond as they argued about who should shoulder the burden of undertaking such an endeavor. B. The amount of energy required to create and transport sufficient ozone to the stratosphere would be cost prohibitive. C. Any ozone we placed into the stratosphere would be destroyed by the same catalytic action that destroys naturally occurring stratospheric ozone. D. all of the above
Central place theory holds that the size and spacing of urban areas is a function of
A) government planning. B) historical development of religious centers. C) where people go to purchase goods and services. D) the specific types of economic activity in the overall area studied.
Did this make it easier or more difficult to interpret earthquake risk in the United States?
Sometimes it is useful to make a layer transparent so that the basemap (in this case the imagery) can be seen below the layer. Click on the ellipses below the USA Earthquake Risk layer name and select “Transparency.” Set transparency to 50%.
What is a lingua franca? Provide two examples
What will be an ideal response?