hazards -nature of wildfires

Question 1

what is a wildfire?

Answer 1

.an uncontrollable rural fire

Question 2

what do wildfires do?

Answer 2

.they destroy forests, grasslands and other areas of vegetation

Question 3

how many main types of wildfires are there?

Answer 3

3

Question 4

what are the 3 main types of wildfires?

Answer 4

.ground
.surface
.crown

Question 5

what is a ground fire?

Answer 5

.slow smouldering fire that burns organic matter in the soil eg -peat
.spread slowly at fairly low temperatures for long periods of time
.can be no flame

Question 6

what is a surface fire?

Answer 6

.the burning of leaf litter and low-lying vegetation -most common type of fire.
.can be low or high intensity
.cool quickly and are relatively easy to control

Question 7

what is a crown fire?

Answer 7

.fire that moves rapidly through the canopy -top layer of vegetation
.has a dramatic effect on forested areas
.hottest type of fire
.very difficult to contain

Question 8

what is the process called whereby a fire spreads from the ground to the tree canopy?

Answer 8

.ladder effect

Question 9

why are fires so good at climbing?

Answer 9

.because hot air rises which means heat transfers vertically