CompTIA A+ 220-801

Answer: A - Low humidity can be a contributing factor to Electrostatic Discharge (ESD).

Key Takeaway: Anyone who has ever lived in a dry or desert-like climate knows that the low-humidity causes electro-static shocks to occur constantly-when I lived in Las Vegas, Nevada, every time I got into my car I received a shock when opening the door. Since water conducts electricity, humidity in the air dissipates some of the electricity building-up in your body, hence reducing the occurrence of ESD. This is why large server rooms usually have monitored humidity and humidifiers. While extreme heat and cold may affect computer components, they should not have a directly noticeable impact on ESD.