Earth Sci 2GG3 FINAL UPDATED ACTUAL Exam Questions and CORRECT Answers
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Course
Earth Sci 2GG3
Institution
Earth Sci 2GG3
Earth Sci 2GG3 FINAL UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Fire requires the following three conditions:
A. oxygen, dry conditions, and heat
B. fuel, oxygen, and heat
C. fuel, oxygen, and dry conditions
D. fuel, heat, and lightning,
E. oxygen, dry conditions and lightning - CO...
Earth Sci 2GG3 FINAL UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Fire requires the following three conditions:
A. oxygen, dry conditions, and heat
B. fuel, oxygen, and heat
C. fuel, oxygen, and dry conditions
D. fuel, heat, and lightning,
E. oxygen, dry conditions and lightning - CORRECT ANSWER- ✔✔B. fuel, oxygen, and
heat
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. - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER- ✔✔A
Presently in Canada most wildfires are started by:
A Asteroids
B People
C Rockfalls
D Lightning - CORRECT ANSWER- ✔✔B
When combustion takes place
A the fuel is chemically degraded
B volatile gases are produced
C ignition occurs
D pyrolysis occurs - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER- ✔✔D
Flaming combustion differs from smouldering combustion in that it
A is a slow process.
B leaves a large amount of residual unburned material
C is a low temperature of fuel to thermal energy.
D only occurs during drought conditions.
E does not require rapid pyrolysis. - CORRECT ANSWER- ✔✔B
The term fire regime refers to
A the pattern of fire activity in an area
B techniques of fire suppression.
C how fires are managed in an area.
D the natural service functions of wildfires.
E linkages of fires with climate. - CORRECT ANSWER- ✔✔A
The term fire regime refers to
A the pattern of fire activity in an area
B techniques of fire suppression.
C how fires are managed in an area.
D the natural service functions of wildfires.
E linkages of fires with climate. - CORRECT ANSWER- ✔✔A
Which of the following is NOT released during wildfire? (fuel + o2 = co2 + h2o + heat +
light)
A● Carbon dioxide
B●Water vapor
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