Using sprinklers to prevent crop damage from cold air works best when ____.
A)the air is fairly humid
B)the air is fairly dry
C)the air is dry and hot
D)the air is dry and cold
E)it's over 30 degrees Celsius

Question

Quizplus · Accepted Answer

When the air is fairly humid, using sprinklers to prevent crop damage from cold air is most effective because the water from the sprinklers can freeze on the plants, releasing latent heat and thus protecting the plants from freezing. This process is less effective in dry conditions because evaporation can cool the plants further, potentially causing more damage.

Using Sprinklers to Prevent Crop Damage from Cold Air Works