Firefighters control a fire’s spread (or put it out) by removing one of the three ingredients fire needs to burn: heat, oxygen, or fuel. They remove heat by applying water or fire retardant on the ground (using pumps or special wildland fire engines) or by air (using helicopters/airplanes).
Why are fires so hard to put out?
Many factors affect how a wildfire burns and how difficult it may be to control. The three sides of the fire behaviour triangle are weather, topography and fuels. … Larger fires require more people and equipment, such as engines, pumps, bulldozers, helicopters and air tankers dropping water or retardant.
How much water does it take to put out a forest fire?
This matters because you need a gallon of water to put out every 3 square feet that’s on fire. By the way, a hose spraying 300 gallons of water a minute can fill about 8 bathtubs at once!
Do they use salt water to fight fires?
Fire can be put out with seawater, though it is not usually used to do so. Saltwater can effectively extinguish fire, but it may damage firefighting equipment and hurt plant life if used. Saltwater use creates problems for both the water distributing equipment and the surrounding environment.
Why don’t they use sea water to put out forest fires?
The salt from using ocean water would ruin the local ecosystem, making it so that no plants would grow in that forest for decades. C) The salt would also accelerate oxidation of metals that it comes in contact with causing cars to start rusting away.
Why don t fires stop immediately as soon as they start?
Once it’s started, a wildfire can spread due to the wind, being on a slope or because of fuel. … “That’s because it’s pre-heating the fuel above it. So if a fire is going up a mountain it will go very fast.”
Why is it so hard for firefighters to put out a wildfire?
There are a few reasons why wildfires are so devastating. First, they are incredibly hard to contain. … By that time, the forest fires have grown to a state where they are no longer controlled. Their sheer size makes them very hard to control, even with attacks from the ground, the air, and specialized vehicles.