The most important source of carbon monoxide emissions in the United States is

A) natural emissions.
B) automobile engines.
C) coal-fired energy plants.
D) industrial processes.


Answer: B

Environmental & Atmospheric Sciences

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Answer the following statement true (T) or false (F)

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A) has never been proven to be successful. B) creates lightning that will initiate the collision and coalescence process. C) relies on warming the cloud so that water vapor will condense on ice crystals more easily. D) relies on cooling the cloud so low that water vapor will condense on ice crystals more easily.

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In the context of services, an "export" depends on the location of the sale

Indicate whether the statement is true or false

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