Question

which weather variable is a major factor in determining the strength and rating of severe storms like tornadoes and hurricanes?
a. barometric pressure
b. dew point
c. temperature
d. wind speed

Explanation:

Barometric pressure is a key factor. Lower barometric pressure within storms (like tornadoes and hurricanes) indicates stronger storms. For example, in hurricanes, the Saffir - Simpson scale uses central pressure (a form of barometric pressure) in part to classify storm strength. Dew point relates to moisture, temperature is about heat, and wind speed is a result (though related, not the major factor in the initial rating like pressure).

Answer:

A. Barometric Pressure