How might you distinguish a sodium-vapor street lamp from a mercury-vapor street lamp?

A) use binoculars to look for printing adjacent to the bulb
B) look at the street lamps through a spectroscope and match their spectral patterns to their respective atomic spectra
C) ask your local utility company to identify these lamps for you
D) The shadows cast from a sodium-vapor street lamp tend to be more diffuse around the edges.


B

Environmental & Atmospheric Sciences

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Mid-ocean ridges form where two ocean plates

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Most useful oil deposits are usually found

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The mass extinction at the end of the Mesozoic was of far greater magnitude than the extinction

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Environmental & Atmospheric Sciences