Question

1. what causes the wind chill factor?

a. combination of wind speed and temperature
b. high humidity
c. increase in barometric pressure
d. solar radiation

Explanation:

The wind chill factor is the perceived decrease in air temperature felt by the body due to the flow of air (wind) across the skin, which is a result of the combination of wind speed and the actual air temperature. High humidity is related to heat index (for perceived heat), barometric pressure relates to weather systems, and solar radiation is about heat from the sun, not wind chill. So option a is correct.

Answer:

a. Combination of wind speed and temperature