Name one common fire suppression method used by firefighters.

Applying water to reduce temperature and extinguish the flame is a widely utilized fire suppression method. Water is effective in absorbing heat and lowering the temperature of the burning materials, making it a primary tool for firefighters. When water is applied to a fire, it transforms into steam, which takes up a larger volume than liquid water, helping to displace oxygen around the fire, further aiding the extinguishing process.

This method is particularly advantageous because it is generally readily available, cost-effective, and can be applied quickly from firefighting hoses or other delivery systems. Firefighters prioritize using water in many situations due to its versatility and effectiveness in managing both structural and wildland fires.

The other options listed may be effective in specific scenarios or for particular types of fires, but they do not have the widespread applicability and efficiency of using water as a fire suppression method. For instance, covering a fire with a blanket or using sand is practical in limited contexts, often for smaller fires. Turning off the gas supply can prevent additional fuel from feeding a fire but does not extinguish it directly. Therefore, water remains the primary and most common method for fire suppression efforts.