The heat index tells you how hot it feels as a result of the combination of temperature and humidity. The figure below gives a contour diagram for the heat index as a function of temperature and humidity. Fix the humidity level at 50%. As the temperature rises, does the heat index rise more rapidly at milder temperatures (70 to 90 ) or at very hot temperatures (90 to 110 )?
A)milder temperatures
B)very hot temperatures

Question

The heat index tells you how hot it feels as a result of the combination of temperature and humidity. The figure below gives a contour diagram for the heat index as a function of temperature and humidity. Fix the humidity level at 50%. As the temperature rises, does the heat index rise more rapidly at milder temperatures (70  to 90  ) or at very hot temperatures (90  to 110  )? 
A)milder temperatures 
B)very hot temperatures

Quizplus · Accepted Answer

Looking at the contour lines, we can see that the heat index rises more rapidly at higher temperatures (90-110°F) compared to milder temperatures (70-90°F) when the humidity is fixed at 50%. This means that as the temperature increases, the rate at which the heat index increases also increases, especially at very hot temperatures.

The Heat Index Tells You How Hot It Feels as a Result