The man determines that the temperature is "colder than fifty below" by

A. consulting a spirit thermometer.
B. noticing the amount of ice on his beard.
C. spitting into the air.
D. estimating the thickness of the ice on the Yukon.



Answer :

Final answer:

The man determines the extreme cold temperature by spitting into the air, which freezes instantly.


Explanation:

The man determines that the temperature is 'colder than fifty below' by spitting into the air. In the story provided, the protagonist realizes the extreme cold when his spit freezes before hitting the ground, indicating temperatures colder than fifty below zero.


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