SCI 2GG3 UPDATED SCRIPT 2026
PRACTICE SOLUTIONS GRADED A+
● Which of the following best describes what happens during the
preignition process in wildfire development?
A Fuel is heated, it loses water and is ready to be ignited
B Gases cool and contract to produce fuel.
C Fuel at the front of a fire is ignited
D Gases heat and expand into fuel.
E Fuel gains carbon dioxide and is ready to burn.. Answer: A
● Why are wildfires becoming more disastrous?
A the frequency and severity of lightning storms is increasing
B. past fire-supression techniques have increased the amount of fuel
available
C. the climate is getting drier as global temperatures rise
D. more people are moving to areas at risk for fire hazards
E. government resources for firefighting are insufficient. Answer: D
● In Canada, the geographic area that is most at risk from forest fires is
a southern ontario
b the arctic tundra
,c nunavut
d prince edward island
e the boreal forest. Answer: e
● A fire is considered extinct when
A. when combustion, including smouldering, ceases (textbook)
confirmed
B. when the source of combustion is removed
C. when flaming combustion ceases
D. you can no longer see flames
E. when smoke is no longer observed. Answer: A
● Which of the following factors most influence the, spread, intensity
and form of a wildfire?
A wind
B precipitation
C. drought
D. humidity
E. temperature. Answer: A
● Presently in Canada most wildfires are started by:
A Asteroids
B People
,C Rockfalls
D Lightning. Answer: B
● When combustion takes place
A the fuel is chemically degraded
B volatile gases are produced
C ignition occurs
D pyrolysis occurs. Answer: C
● If you were a geologist, what evidence might you find (in rocks or
sediments) that would indicate that wildfires had occurred in the past?
A charcoal
B fossilized pine cones
C clay layers
D oak bark. Answer: A
● Which of the following factors affects the amount of shaking an area
experiences during an earthquake?
A distance from focus
B earthquake magnitude
C local rock and coil characteristics (presume this is a typo and he meant
to put soil)
D directivity of the rupture
, E all of the listed options. Answer: E
● Hot fires that scorch dry, coarse soil may lead to
A increased soil strength and fewer landslides
B the formation of a water repellent layer
C increased water infiltration
D more debris flows
E decreased surface runoff. Answer: B
● Wildfire scientists and firefighters classify fire behaviour according to
A the wind speed at the fire site
B the layer of fuel that is allowing the fire to spread
C the species of vegetation that is being burnt
D the humidity at the fire site
E the amount of precipitation that has fallen in the region. Answer: B
● On a scale of decades to centuries, the most important condition for
initiating large wildfires is
A● the climate
●B forest composition.
C● human carelessness.
D● lightning. Answer: D
PRACTICE SOLUTIONS GRADED A+
● Which of the following best describes what happens during the
preignition process in wildfire development?
A Fuel is heated, it loses water and is ready to be ignited
B Gases cool and contract to produce fuel.
C Fuel at the front of a fire is ignited
D Gases heat and expand into fuel.
E Fuel gains carbon dioxide and is ready to burn.. Answer: A
● Why are wildfires becoming more disastrous?
A the frequency and severity of lightning storms is increasing
B. past fire-supression techniques have increased the amount of fuel
available
C. the climate is getting drier as global temperatures rise
D. more people are moving to areas at risk for fire hazards
E. government resources for firefighting are insufficient. Answer: D
● In Canada, the geographic area that is most at risk from forest fires is
a southern ontario
b the arctic tundra
,c nunavut
d prince edward island
e the boreal forest. Answer: e
● A fire is considered extinct when
A. when combustion, including smouldering, ceases (textbook)
confirmed
B. when the source of combustion is removed
C. when flaming combustion ceases
D. you can no longer see flames
E. when smoke is no longer observed. Answer: A
● Which of the following factors most influence the, spread, intensity
and form of a wildfire?
A wind
B precipitation
C. drought
D. humidity
E. temperature. Answer: A
● Presently in Canada most wildfires are started by:
A Asteroids
B People
,C Rockfalls
D Lightning. Answer: B
● When combustion takes place
A the fuel is chemically degraded
B volatile gases are produced
C ignition occurs
D pyrolysis occurs. Answer: C
● If you were a geologist, what evidence might you find (in rocks or
sediments) that would indicate that wildfires had occurred in the past?
A charcoal
B fossilized pine cones
C clay layers
D oak bark. Answer: A
● Which of the following factors affects the amount of shaking an area
experiences during an earthquake?
A distance from focus
B earthquake magnitude
C local rock and coil characteristics (presume this is a typo and he meant
to put soil)
D directivity of the rupture
, E all of the listed options. Answer: E
● Hot fires that scorch dry, coarse soil may lead to
A increased soil strength and fewer landslides
B the formation of a water repellent layer
C increased water infiltration
D more debris flows
E decreased surface runoff. Answer: B
● Wildfire scientists and firefighters classify fire behaviour according to
A the wind speed at the fire site
B the layer of fuel that is allowing the fire to spread
C the species of vegetation that is being burnt
D the humidity at the fire site
E the amount of precipitation that has fallen in the region. Answer: B
● On a scale of decades to centuries, the most important condition for
initiating large wildfires is
A● the climate
●B forest composition.
C● human carelessness.
D● lightning. Answer: D
