Besc 201 ch 15-21 Exam Questions Marking Scheme New Update
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Besc 201
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Besc 201
Besc 201 ch 15-21 Exam Questions Marking Scheme New Update
The Colorado River's water resource allocation is being complicated by ________. - Answers -the rapid growth of Las Vegas
Sinkholes result from ________. - Answers -overconsumption of water from aquifers weakening the substrate
Met...
Besc 201 ch 15-21 Exam Questions
Marking Scheme New Update
The Colorado River's water resource allocation is being complicated by ________. -
Answers -the rapid growth of Las Vegas
Sinkholes result from ________. - Answers -overconsumption of water from aquifers
weakening the substrate
Methods for desalinating sea water to produce fresh water include ________. - Answers
-reverse osmosis and distillation
Which of the following best describes a floodplain? - Answers -a region of land that is
periodically flooded when a river overflows
The formation of sinkholes has become a fairly common phenomenon in the state of
Florida. Most sinkholes are small, but some sinkholes have led to catastrophic property
damage and loss of life. One September day in 1999, folks began to notice that Lake
Jackson in the panhandle region was shrinking. Within a few days, it was almost gone.
A sinkhole had opened beneath the lake and drained it, along with all of the fish and
alligators. Another sinkhole formed just 10 miles from Walt Disney World® in August
2013, swallowing a 48-unit villa at Summer Bay Resort®.
As aquifers lose water, their substrates can become weaker and less capable of
supporting overlying strata and any human structures built upon them. In such cases,
the land surface above may subside. Sometimes subsidence can occur locally and
suddenly, in the form of sinkholes, areas where the ground gives way with little warning.
Once the ground subsides, soil - Answers -the surrounding soils are compacted and the
size of the aquifer is reduced
Recent research that analyzed the content of commercial bottled water indicates that
________. - Answers -bottled water is no safer or purer than most samples of tap water
Artificial wetlands ________. - Answers -can help purify water and also provide wildlife
habitat
The formation of sinkholes has become a fairly common phenomenon in the state of
Florida. Most sinkholes are small, but some sinkholes have led to catastrophic property
damage and loss of life. One September day in 1999, folks began to notice that Lake
Jackson in the panhandle region was shrinking. Within a few days, it was almost gone.
A sinkhole had opened beneath the lake and drained it, along with all of the fish and
alligators. Another sinkhole formed just 10 miles from Walt Disney World® in August
2013, swallowing a 48-unit villa at Summer Bay Resort®.
, As aquifers lose water, their substrates can become weaker and less capable of
supporting overlying strata and any human structures built upon them. In such cases,
the land surface above may subside. Sometimes subsidence can occur locally and
suddenly, in the form of sinkholes, areas where the ground gives way with little warning.
Once the ground subsides, soil - Answers -a drought had recently occurred, along with
increased development and groundwater use
A long, raised mound of earth used to control flooding along a river. - Answers -levee
Xeriscaping can save water by ________. - Answers -planting native or drought-
resistant plants which require less water than typical landscaping plants
...
The main environmental problem caused by harvesting bottom-dwelling mollusks is
________. - Answers -habitat destruction
Use the figure to answer.
An increase in atmospheric CO2 levels would increase the production of which of the
following in the ocean? - Answers -HCO3-
A 2003 study reported that ________% of large-bodied fish and sharks were lost in the
first decade of industrialized fishing. - Answers -90
Bycatch ________. - Answers -refers to the accidental capture of animals
Ecosystem that lies along the shoreline between the farthest reach of the highest tides
and the lowest reach of the lowest tide. - Answers -littoral zone
Most marine-protected areas ________. - Answers -are along the coastlines of
developed nations
Salt marshes ________. - Answers -occur mostly in temperate areas
Which of the following is true of eutrophication in marine systems? - Answers -It can
lead to algal blooms and red tides that kill fish.
What are groundfish? - Answers -various species that live in benthic habitats, such as
halibut, cod and flounder
One key to the puzzle of Los Angeles smog is the fact that ________. - Answers -Los
Angeles and its suburbs are all ringed by mountains
Seasons are a result of ________. - Answers -differences in the amount and intensity of
sunlight brought about by the tilt of Earth's axis
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