Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
53 Cards in this Set
- Front
- Back
Groundwater storage and flow relate geologically to:
|
porosity and permeability, respectively
|
|
Why is the water table a potentiometric surface?
|
because groundwater flows at typically only a few centimeters per day
|
|
What is not a major control on the climate at a given location on earth?
|
oxygen isotope ratio of local water
|
|
Why is the water table a potentiometric surface?
|
because groundwater flows at typically only a few centimeters per day
|
|
Which of the following influences climate the most over millions of years?
|
variations in the carbon cycle
|
|
What climate conditions are we living in today?
|
icehouse conditions
|
|
About how much lower was the sea lever 18000 years ago?
|
100 meters
|
|
Which of the following could be used to reconstruct ice limits from previous glaciations?
|
all of the above
|
|
CO2 is the only greenhouse gas
|
false
|
|
The best record of climate change over the past million years of so is:
|
oxygen isotopes in marine sediments
|
|
Which of the following statements is true?
|
volumes of reservoirs can change in the hydrologic cycle
|
|
A major driver of oceanic circulation is density. This type of circulation is known as:
|
thermohaline
|
|
When buying a house, the morgage company will do a flood-risk analysis. They will essentially be checking:
|
if the house sits on the floodplain
|
|
It is possible for 100yr floods on a river system to occur twice in the same year.
|
true
|
|
The nearest place to stand on the eastern continental divide is:
|
South Main Street
|
|
The difference between a braided stream and a meandering stream is probably:
|
sediment load
|
|
The Mississippi River has:
|
high capacity
|
|
Sand at the bottom of a river moves by:
|
bedload
|
|
River discharge:
|
increases downstream
|
|
Stream power:
|
increases downstream
|
|
A stream that flows only when it rains is:
|
ephemeral
|
|
A natural, positive feedback effect is:
|
river meandering
|
|
What is need to calculate river discharge?
|
average velocity, cross sectional area of river
|
|
Which is not an example of a constructional landscape?
|
glacial valley
|
|
The most effective form of erosion (where it counts) is:
|
glacial erosion
|
|
Which of the following is an example of mass wasting?
|
soil creep
|
|
which of the following rock units would make a good aquitard?
|
shale
|
|
the biggest user of water in the US is:
|
agriculture
|
|
The bottom line with respect to water resources in the US comes down to:
|
money
|
|
Which of the following is a common natural groundwater contaminant?
|
arsenic
|
|
Yucca Mountain is:
|
proposed nuclear waste repository
|
|
What does not happen as waves approach a shoreline?
|
amplitude increases
|
|
Which of the following has the longest residence time in the ocean?
|
NaCl
|
|
Streams in the Valley and Ridge have what sort of network?
|
trellis
|
|
Which of the following has the longest residence time in the ocean?
|
NaCl
|
|
Which of the following is true of rivers?
|
discharge is greater downstream
|
|
A typical angle of repose for grandular material with no cohesion is:
|
30 degrees
|
|
How much water is used per capita in the US each day?
|
6000 liters
|
|
Which would be the best bedrock to drill in for groundwater?
|
conglomerate
|
|
An example of a volcanic eruption well predicted by USGS scientists:
|
Mt. Pinatubo
|
|
Silt depostied by air, commonly during dry, cold glacial climates, is called:
|
loess
|
|
The most costly form of mass wasting is:
|
Soil creep
|
|
Which orbital variation has the shortest frequency of variation?
|
precession
|
|
Which H20 sample of the following would have the greatest concentration of O18?
|
the oceans - during the last Ice Age
|
|
A place where base-level has fallen over the past few million years, resulting in incision is:
|
Grand Canyon
|
|
About how long does it take for any given water molecule in the ocean to pass through the hydrologic cycle?
|
3200 years
|
|
Residence time of chemicals in the oceans is largely controlled by the rate of flux into the oceans from rivers and:
|
the chemical's solubility
|
|
What is the residence time of a weenie on a 7-11 weenie rack?
|
8hrs
|
|
If you had James Bond's submersible car, and drove into the ocean at Virginia Beach and headed east, you would:
|
be at a few hundred meters depth for the first few hundred miles
|
|
If caught in a rip-current, to survive you must:
|
swim parallel to shore
|
|
the primary cause of the "sand budget" on beaches is:
|
longshore drift
|
|
Which of the following reservoirs from the hydrologic cycle is the biggest?
|
glaciers, ice
|
|
Solar energy is the driving energy source for the hydrologic cycle.
|
true
|