Stored potatoes, beets, and rutabagas freeze at temperatures below zero degrees Celsius (rather than at exactly zero)because
A)they are good radiators of energy.
B)they are good absorbers of radiant energy.
C)the water in them contains dissolved salts and sugars.
D)they are relatively dense.
E)all of the above

Question

Quizplus · Accepted Answer

The presence of dissolved salts and sugars in the water in potatoes, beets, and rutabagas lowers the freezing point of the water, causing them to freeze at temperatures below zero degrees Celsius. This is known as "freezing point depression". This allows the vegetables to be stored at lower temperatures without freezing completely, which can cause damage to the cells and affect their texture and taste. The other options (A, B, D, and E) do not explain why these vegetables freeze at temperatures below zero degrees Celsius.

Stored Potatoes, Beets, and Rutabagas Freeze at Temperatures Below Zero