Final answer:
The five conditions necessary for a wind-driven fire to occur are high wind speed, open windows, flammable materials, low humidity, and water supply. These factors can greatly influence the intensity and spread of the fire.
Step-by-step explanation:
For a wind-driven fire to occur, several specific conditions must exist. The correct answer is a) High wind speed, open windows, flammable materials, low humidity, and water supply. Here's why:
- High wind speed: High winds can help to spread the fire more rapidly across the landscape.
- Open windows: Openings such as windows allow the wind to enter and feed the fire with additional oxygen, increasing its intensity.
- Flammable materials: Combustible materials serve as fuel for the fire, allowing it to ignite and continue burning.
- Low humidity: Lower humidity levels mean that the air and the fuel are drier, making them more susceptible to combustion.
- Water supply: While this may seem counterintuitive, proximity to a water source can actually enhance fire spread through spotting if conditions are right, where embers are carried by the wind and start new fires beyond the water barrier.
Understanding these conditions is crucial in wildfire suppression and prevention strategies.