Mastering geol for final – Flashcards
Unlock all answers in this set
Unlock answersquestion
A rainshadow desert forms ______.
answer
on the leeward side of a mountain
question
Which of the following is characteristic of a desert stream?
answer
Desert streams lack an expansive tributary system.
question
Of the following options, which is the most common type of chemical weathering in a desert?
answer
Oxidation
question
Which of the following desert features has sediment-size grading similar to that in a delta?
answer
Alluvial fan
question
What size sediment can be transported by wind? CHOOSE ALL THAT APPLY
answer
sand, clay, silt
question
The lower limits of a blowout are controlled by ______.
answer
the local water table
question
Which of the following is a wind deposit?
answer
barchan dune
question
Which one of the following is an evaporite mineral?
answer
gypsum
question
what is a playa commonly occupied by
answer
an ephemeral lake
question
what does saltating mean?
answer
Sand grains are lifted by the wind, leap a short distance, and then fall back to the ground.
question
What is the natural angle of repose for sand?
answer
34 degrees
question
The coastal zone is _______.
answer
composed of fragile, short-lived features that are inappropriate for development
question
Where is the best place to sunbathe (and keep your blanket dry) in the coastal zone?
answer
the berm
question
As a wave passes under a floating object, _____.
answer
the object will move vertically a distance equal to that of the wave height
question
Which of the following is responsible for moving tons of sediment parallel to the shore?
answer
longshore currents
question
Which of the following depositional features is produced by longshore transport
answer
spit
question
Which one of the following statements regarding active and/or passive margins is NOT true?
answer
Cape Cod represents an active margin, as evidenced by its large sand dunes.
question
What is the name of the gigantic boulders left behind as the glaciers receded?
answer
erratics
question
A thin peninsula called a spit extends beyond the bluffs of the outer beach on Cape Cod. What has caused this spit to form?
answer
Sand from the bluffs is carried and deposited by longshore currents.
question
If the sediment that makes up the beaches of Cape Cod were to lithify, what kind of rock would it become?
answer
sandstone
question
Which of the following methods to counteract beach erosion do coastal scientists consider the best permanent option?
answer
relocation of at risk structures
question
Which of the following is a characteristic example of an emergent coastline?
answer
wave-cut platform
question
When does the spring tide occur?
answer
When the Sun and the Moon are in alignment
question
What is a tropical cyclone?
answer
a low-pressure disturbance that develops over warm, tropical waters
question
Where are tropical cyclones found?
answer
lower to middle latitudes
question
Which of the following names mean "tropical cyclone"?
CHOOSE ALL THAT APPLY.
answer
typhoon, hurricane, cyclone
question
Why is heavy rain associated with hurricane formation?
answer
Rising, moist air cools. As air cools, water condenses and eventually falls.
question
Why is warm, moist air considered the "fuel" for a hurricane?
answer
Air cools as it rises. As air cools, water vapor will condense out as liquid water. Condensation releases heat, providing energy to the hurricane.
question
How big can the diameter of a hurricane become?
answer
500 miles
question
which of the following is a renewable resource?
answer
trees
question
what type of rock would be an ideal cap rock?
answer
shale
question
What is one drawback to nuclear energy?
answer
Radioactive nuclear waste is difficult to dispose of properly.
question
Which renewable energy resource makes up the largest share of Iceland's energy?
answer
geothermal energy
question
Which of the following is a characteristic of a mineral deposit?
answer
The profitability of a deposit can change if the market price of that metal changes.
question
Diamonds are typically found in ___.
answer
kimberlite pipes
question
The California Gold Rush began because gold was found in a ____.
answer
placer deposit
question
Which of the following is a nonmetallic mineral resource that is used as a building material?
answer
gypsum
question
In the solar panel system presented in the video, which of the following was necessary to generate usable electrical current for a home?
answer
DC power had to be converted to AC
question
Which of the following best describes the energy conversion sequence in the solar panel system described in the video?
answer
Photons carrying energy from the sun chemically react with silicon crystals to generate a flow of electrons.
question
Which of the following would indicate that a home is using solar power to generate electricity and is NOT using batteries?
answer
There are solar panels on the roof and power lines going to the home
question
If a home uses a large supply of solar panels to generate electricity, but has no battery system, surplus electricity that is produced is usually __________.
answer
released into the power grid for others to use, generating a credit to the homeowner
question
Which of the following is a challenge to using solar-generated electricity in places not connected to a power grid?
answer
the lack of efficient and inexpensive battery technology
