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10 Cards in this Set

  • Front
  • Back
Which of the following best describes floodplains?
A.an area where flood irrigation of crops is used, such as a rice paddy
B. an area that is incidentally flooded when farming or mining operations change the course of rivers
C.an area that is periodically flooded because humans have altered the landscape
D.a region of land that has been deliberately, permanently flooded due to human disturbance, such as in dam building
E.a region of land that is periodically flooded when a river overflows
E.a region of land that is periodically flooded when a river overflows
The fish in the lake at the local park are dying. A professor from the local college comes to investigate, and first she measures the dissolved oxygen. She wants to check the ________.
A.aquatic biodiversity
B.presence of heavy metals
C.presence of bacteria
D.influence of acid precipitation
E.possibility of eutrophication
E.possibility of eutrophication
Only about 2.5% of all the water on our planet is freshwater. However, ________.
A.most of this is in large, freshwater lakes
B.most of this is in underground aquifers
C.over half of this is in wetlands near coastlines and is becoming contaminated with salt water
D.most of this is far from where humans live
E.over half of this is extremely hard water and is nearly unusable for drinking or agriculture
D.most of this is far from where humans live
Humans use freshwater primarily for ________.
A.mining and industrial processes
B.agricultural irrigation
C.washing and home use
D.electrical production
E.drinking and cooking
B.agricultural irrigation
We build dams to ________.
A.improve habitat for native fish
B. drain wetlands for urban development
C. control the spread of water borne diseases
D. generate electricity, prevent flooding and provide irrigation
E. transform watersheds into farms, towns and recreational areas
D. generate electricity, prevent flooding and provide irrigation
Dam removal in this country ________.
A. provides many new jobs and opportunities and so is economically beneficial
B.will assist with our transition to more natural forms of renewable energy
C.will probably increase rapidly as we move to a more fossil-fuel-dependent society
D.is controversial because dams provide such good habitats for native species
E.will probably continue because the environmental impacts of dams are reviewed periodically
E.will probably continue because the environmental impacts of dams are reviewed
Why was the irrigation of Soviet cotton farming operations a problem?
A.There was governmental opposition that limited water access, killing crops.
B.It was, for the most part, not a problem.
C.It drained the Aral Sea and increased the salt content of soils.
D.It angered local resort communities, which did not want farming in the region.
E.Irrigation water came from rivers feeding into one of the largest lakes on Earth and resulted in major contamination of that source.
C.It drained the Aral Sea and increased the salt content of soils.
Sinkholes result from ________.
A.flood damage and chemical erosion
B.overconsumption of water from aquifers weakening the substrate
C.substrates that become weak following rain
D.poorly drilled wells in soft soils
E.building on floodplains
B.overconsumption of water from aquifers weakening the substrate
Which of the following is one of the major pollutants of groundwater?
A.home garbage
B.acid rain
C.fertilizers from agricultural fields
D.carbon dioxide
E.treated sewage from cities
C.fertilizers from agricultural fields
As of 2010, the saga of the Colorado River's water resource allocation is being complicated by ________.
A.rapid growth of vegetable farms in southern Arizona
B.large numbers of people moving out of Nevada
C.sinkhole collapses in Arizona and southern California
D.saltwater intrusion into the Colorado estuary near San Diego
E.several years of drought coupled with the rapid growth of Las Vegas
E.several years of drought coupled with the rapid growth of Las Vegas