CORRECT.
Whether lightning or humans start more wildfires Answer - Humans
Which factors strongly influence the potential for wildfires to spread Answer -
Vegetation, topography, and weather (temperature and moisture)
What surface and crown fires are Answer - Surface fire- grasses, shrubs as
kindling
Crown fire- flames reach canopies of trees
The three stages of a wildfire. Answer - Preheating, Combustion, Smoldering
Which wildfire was the largest to occur in United States history Answer - Great
Fire of 1910 - 3 million acres burned in Northwest
The original and current policies of the U.S. Forest Service regarding fighting
wildfires Answer - 1910 policy - fight all fires
Current policy - fight near populations and let burn in primative areas so that
unburnt fuel doesn't build up
The benefits of forest and grassland wildfires. Answer - Fuel reduction,
improvement of natural ecosystem (eliminates invasive species). Good for
lodgepole pines
, The purpose of a fireline and a backfire in fighting wildfires Answer - Fireline-
remove fuel by scraping to ground so that fire cannot cross (doesn't work in
high winds)
Backfire- remove fuel by burning back towards fire with natural fireline present
Why air tankers are dangerous to fly Answer - Low altitudes, low speeds, fire
driven winds, usually old planes
The advantage that helitankers have over air tankers. Answer - More specific
targeting of drops, can refill in small bodies of water
But, has shorter range and can carry less water
The main function of a smoke jumper. Answer - Fight remote wildfires with
limited access (no roads)
What fire shelters are designed to do. Answer - Last resort fire safety device
that is not designed to survive direct contact with flames, but does provide
convection/radiation protection
The dangers of burning embers (firebrands) and good wildfire safety practices
at home and
while camping Answer - Firebrands are most common means of spreading fire
in subdivisions
Home- remove vegetation, fire resistant shingled roof, accessible driveway
Campfire- 3 meters of space and soak it. stir it. soak it again.
The ingredient for s'mores. Answer - Graham cracker, chocolate, and melted
marshmallow