GLY EXAM 2 QUESTIONS WITH
CORRECT ANSWERS
The most abundant greenhouse gas in Earth's atmosphere is: - Answer- water vapor
Most of the excess heat from the warming atmosphere is stored in the ocean. How does
this influence hurricane risk? - Answer- warm water strengthens hurricanes. Warmer
oceans mean hurricanes can get more powerful.
If two locations both have temperatures around 100 degrees F, and one has high
humidity and has low humidity, which location poses the greatest risk for heat stress on
the human body? - Answer- the location with high humidity
True or false: Heatwaves result in more deaths in the U.S. than any natural hazard. -
Answer- True
A Heat Island is the name given to urban areas that are warmer that the surrounding
area. Heat Islands are a result of: - Answer- All of the other answers are correct
Precession describes what about the Earth's orbit - Answer- the wobble, or variation of
the spin of the Earth
The sun is not a consistent source of energy- going through a cycle of more and less
energy output. This cycle is roughly - Answer- 11 years
Volcanoes can impact climate. Periods of prolonged volcanic eruptions have a
[warming/ cooling] effect on global climate - Answer- cooling
The peak of the last Ice Age was about 20,000 years ago. With all that water locked up
in ice on the continents, there was [more/ less] dry land along the coasts at that time. -
Answer- more
A greenhouse gas is gas that: - Answer- lets solar energy into the atmosphere, but
blocks it from radiating black into space.
The impacts of aerosols- solid particles in the air- on air temperature is complex. But
overall, aerosols in the upper atmosphere: - Answer- cause a cooling effect.
A warming climate means some places will experience more precipitation, but others
will experience drought. How are droughts and deserts related? - Answer- A desert is
, an area where getting little rain is the norm, drought is a condition where an area that
should be getting rain is not getting rain.
Most of the sand on continental beaches comes from: - Answer- rivers and floods
carrying sediment from the interior of the continent
Seasonal shifts in weather patterns create different wave action on the beach. In the
winter, waves are typically ________, and in summer they are typically ______. -
Answer- destructive/ constructive
Natural systems like large sand beaches and mangroves along the coast act as
important hazard mitigation tools primarily because: - Answer- they absorb wave energy
that would otherwise erode the coast.
Longshore drift is the result of waves coming in at an angle to the beach. It causes sand
to move: - Answer- along or parallel to the shoreline
Slope failures often occur during or after periods of high rainfall because: - Answer-
greater weight of water increases the shear force
In lecture, we talked about the La Conchita, CA earthflow that happened in 1995, and
how difficult it was to clean up the debris without further destabilizing the slope. As a
follow up, your book explains what happened 10 years later: - Answer- heavy rains
mobilized a deadly debris flow from the old flow
Moisture between sediment grains on a slope:
(Hint: Think about building a sand castle on the beach) - Answer- can promote stability if
present in small amounts
One of the differences between a slide and a flow is that: - Answer- a flow has more
water
Is the slope in this image is best described as: (for photo check screenshot) - Answer-
unstable and moving slowly due to creep
In the section on mitigation, the text explains that the advantage of creating retaining
walls out of loose rock behind mesh rather than solid wall is: - Answer- it is able to shift
slightly to accommodate points of stress
A good strategy for preventing slides of the top-most rock layers in hard-rock setting is: -
Answer- supporting the slopes with a retaining wall or by adding large bolts
Humans can increase the likelihood of sinkholes by: - Answer- all of these
In a flat region where the rocks consist mostly of marble, which of the following is most
likley? - Answer- sinkholes
CORRECT ANSWERS
The most abundant greenhouse gas in Earth's atmosphere is: - Answer- water vapor
Most of the excess heat from the warming atmosphere is stored in the ocean. How does
this influence hurricane risk? - Answer- warm water strengthens hurricanes. Warmer
oceans mean hurricanes can get more powerful.
If two locations both have temperatures around 100 degrees F, and one has high
humidity and has low humidity, which location poses the greatest risk for heat stress on
the human body? - Answer- the location with high humidity
True or false: Heatwaves result in more deaths in the U.S. than any natural hazard. -
Answer- True
A Heat Island is the name given to urban areas that are warmer that the surrounding
area. Heat Islands are a result of: - Answer- All of the other answers are correct
Precession describes what about the Earth's orbit - Answer- the wobble, or variation of
the spin of the Earth
The sun is not a consistent source of energy- going through a cycle of more and less
energy output. This cycle is roughly - Answer- 11 years
Volcanoes can impact climate. Periods of prolonged volcanic eruptions have a
[warming/ cooling] effect on global climate - Answer- cooling
The peak of the last Ice Age was about 20,000 years ago. With all that water locked up
in ice on the continents, there was [more/ less] dry land along the coasts at that time. -
Answer- more
A greenhouse gas is gas that: - Answer- lets solar energy into the atmosphere, but
blocks it from radiating black into space.
The impacts of aerosols- solid particles in the air- on air temperature is complex. But
overall, aerosols in the upper atmosphere: - Answer- cause a cooling effect.
A warming climate means some places will experience more precipitation, but others
will experience drought. How are droughts and deserts related? - Answer- A desert is
, an area where getting little rain is the norm, drought is a condition where an area that
should be getting rain is not getting rain.
Most of the sand on continental beaches comes from: - Answer- rivers and floods
carrying sediment from the interior of the continent
Seasonal shifts in weather patterns create different wave action on the beach. In the
winter, waves are typically ________, and in summer they are typically ______. -
Answer- destructive/ constructive
Natural systems like large sand beaches and mangroves along the coast act as
important hazard mitigation tools primarily because: - Answer- they absorb wave energy
that would otherwise erode the coast.
Longshore drift is the result of waves coming in at an angle to the beach. It causes sand
to move: - Answer- along or parallel to the shoreline
Slope failures often occur during or after periods of high rainfall because: - Answer-
greater weight of water increases the shear force
In lecture, we talked about the La Conchita, CA earthflow that happened in 1995, and
how difficult it was to clean up the debris without further destabilizing the slope. As a
follow up, your book explains what happened 10 years later: - Answer- heavy rains
mobilized a deadly debris flow from the old flow
Moisture between sediment grains on a slope:
(Hint: Think about building a sand castle on the beach) - Answer- can promote stability if
present in small amounts
One of the differences between a slide and a flow is that: - Answer- a flow has more
water
Is the slope in this image is best described as: (for photo check screenshot) - Answer-
unstable and moving slowly due to creep
In the section on mitigation, the text explains that the advantage of creating retaining
walls out of loose rock behind mesh rather than solid wall is: - Answer- it is able to shift
slightly to accommodate points of stress
A good strategy for preventing slides of the top-most rock layers in hard-rock setting is: -
Answer- supporting the slopes with a retaining wall or by adding large bolts
Humans can increase the likelihood of sinkholes by: - Answer- all of these
In a flat region where the rocks consist mostly of marble, which of the following is most
likley? - Answer- sinkholes
