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Water Test Unit 4 Review Flashcards | StudBud
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Water Test Unit 4 Review
Water Test Unit 4 Review
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#water #test #review
Flashcards
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Answers
1
Invasive species impacting aquatic diversity enter their new ecosystem by
deliberately introduced as commercial species
ballast water of ships
accidentally introduced from gardens or home aquarium
all of these are correct
2
What marine zone is low in dissolved oxygen but supports life due to nutrient richness?
Abyssal
Littoral
Profundal
Euphotic
3
Which best illustrates the increasing use of surface and ground water in the US?
Population increase raises demand for drinking water
Population growth creates agricultural demand for water
Water use rises as affluence grows
More water is being used in hydroelectric power generation
4
The depletion of the world's marine fish stocks due to overfishing is an example of
the tragedy of the commons
the Competitive Exclusion Principal
the sustainable use of resources
imminent domain
5
Photosynthetic organisms such as phytoplankton would be most abundant in which ocean zone?
Bathyl
Benthos
Littoral
Euphotic
6
Which of the following is true of eutrophic lakes?
high nutrient levels, high productivity
high nutrient levels, low productivity
low nutrient levels, low productivity
low nutrient levels, high productivity
7
What is the photosynthetic zone in a lake ecosystem dominated by phytoplankton?
Limnetic
Euphotic
Littoral
Bathyl
8
The land that delivers recharge to tributary streams that flow into larger rivers is known as
source zone
flood plain
watershed
estuary
9
Deep lakes that are characterized by steep banks and low nutrient levels are known as
euphotic
mesotrophic
eutrophic
oligotrophic
10
The diversion of water from rivers that flow into a salt-water lake will increase the
available bird habitat around the lake
volume of water in the lake
salinity of the lake
water quality of the lake
11
The Columbia River is most ecologically impacted by...
River diversions that reduce downstream water
Dams that block salmon migration
Decreasing rates of groundwater recharge
Dams that cause deforestation
12
Which of the following is LEAST likely to help in producing sustainable fisheries?
Filter organisms from ballast water
Establish no-fishing zones
increase subsidies for fishing from the federal government
Set catch limits well below maximum sustainable yiel
13
All of these are ways to reduce your personal water footprint except
Use water thrifty landscaping
Use a grey water system
Use drip irrigation for your lawn
Eat more meat
14
Some plants desalinate water by forcing it through a filter under high pressure. This is
water-logging
drip filtration
reverse osmosis
distillation
15
Which is NOT a characteristic associated with estuaries and wetland ecosystems?
Provide natural nursery areas for many aquatic organisms
increases impacts of flooding during tropical rainy seasons
Economic value for commercial and recreational fishing
Are breeding grounds for many species of waterfowl
16
All of the following are threats to biodiversity in river systems EXCEPT
habitat fragmentation by dams
runoff of animal wastes from feedlots
pesticides entering local rivers from agricultural runoff
increasing riparian zones along stream banks
17
In coastal areas, withdrawing groundwater until ocean water begins to recharge it is called
saltwater intrusion
increased vertical recharge
hypoxic conditions
change in the zone of aeration
18
Which zone of a stream/river will slow the velocity of floodwaters from storms and tsunamis?
Delta zone
Floodplain zone
Transition zone
Source zone
19
What constitutes the greatest percent of use for water withdrawn in the world today?
Smelting of metal in manufacturing
Flushing toilets in residential homes
Drinking water for human consumption
Irrigation for food production
20
What type of commercial fishing is most likely to destroy coral reef habitat?
Drift-net fishing
Long-line fishing
Trawler fishing
Aquaculture farming
21
Which of the following concerning wetlands is INCORRECT?
Salt water estuaries are groundwater recharge areas
They trap sediments and filter water
They are nurseries for many fish, shellfish, and birds
Coastal wetlands are buffers for inland areas during stoms
22
Which of these is an ecological service provided by coral reefs?
Increase terrestrial temperature
Protect coastline from erosion
Addition of carbon dioxide to the atmosphere
Increase oceanic temperatures
23
The aquifer that provides most of the water to the Midwestern United States is called the...
APES Aquifer
Nebraska Aquifer
Ogallala Aquifer
Three Gorges Aquifer
24
All are reasons that estuaries and coral reefs can have high levels of biodiversity EXCEPT
Both receive abundant sunlight
They do not have commercially important species
They are areas of high primary productivity
They have abundant nutrient flow
25
Ecologically, the biggest problem with desalination is...
It requires large amount of fuel
It can only provide freshwater to areas near coasts
It generates large amounts of waste salt/brine
It it expensive
26
The GREATEST use of water globally is for
industry
residential use
municipal management
agriculture
27
Excess nutrients create dead zones through the process of
Runoff
Cultural eutrophication
Nitrogen fertilization
Recharge
28
Which of the following river conditions would yield the highest dissolved oxygen content?
slow-moving cool water, lots of emergent vegetative biomass
slow-moving warm waters with little vegetative biomass
fast-moving cold water, with lots of submerged biomass
Stagnant, warm water with large algae mats
29
The phosphorus and nitrogen concentrations found in groundwater would be greatest beneath
a petroleum refinery
undisturbed forest land
an animal feedlot
a coal-fired power plant
30
Additions of nutrients into a lake ecosystem is LEAST likely to result in
decrease in biodiversity
decrease in gross primary productivity of algae
fish kills
depletion of oxygen in the water
31
Which is NOT a problem associated with hydroelectric dams?
Large output of thermal pollution from producing electricity
Displacement of people along overpopulated waterway areas
Flooding of terrestrial lands that destroys wildlife habitat
Reduction of silt downstream from the dam
32
Bycatch refers to which of the following?
organisms that are unintentionally caught while fishing
harvesting of fish in tropical seas
harvesting of fish in the arctic seas
near-shore trawling for shellfish
33
The percent of earth's water not found in oceans, glaciers, and ice caps is
3%
<1%
5%
10%
34
The top of the zone of saturation, influenced by rate of groundwater recharge is called the
aeration layer
zone of leaching
water table
aquifer
35
All of the following are disadvantages of dams used to produce hydroelectricity EXCEPT
large amounts of water are lost through evaporation
Migration of some fish species is disrupted
Flooding downstream is reduced
Less nutrient rich silt reaching downstream ecosystems
36
Which of these fishing methods produces the most benthic zone destruction?
Purse seine fishing
Long line fishing
Drift-net fishing
Trawler fishing
37
Organisms in this ocean life zone include trees adapted to grow in salt water
Salt marsh
Mangrove forest
Coral reef
Abyssal zone
38
Faces a reduction in biodiversity due to the Nile Perch and algal blooms from farming runoff
Great Lakes, North America
Columbia River, NW US
Lake Victoria, East Africa
Lake Bikal, Russia
39
All of these are negative results of overtapping an aquifer EXCEPT
Land subsidence
Water table lowering
Salt water intrusion
Wetland degradation
40
Which of the following best summarizes the disaster of the Aral Sea?
Melting glaciers have caused fresh water instrusion
It has been severely overfished
All these answers are correct
Diversion of water for agriculture shrank the sea by 90%
41
A predictable result of constructing a dam is...
Reduced downstream flooding
Sediment buildup
All of the above
Increased upstream flooding
42
All of the following are means of improving water-use efficiency in agriculture EXCEPT
rainwater catchment systems
import water intensive crops
Drop irrigation systems
gray water systems in residences
43
Human activities that input excess plant nutrients into lakes are called
artificial fertilization
cultural eutrophication
lake stratification
thermal pollution
44
Organisms in this ocean life zone must be adapted to varying salinities and water immersion
Oligotrophic zone
Bathyl zone
Intertidal zone
Source zone
45
The source zone of a river can be characterized as...
Low in oxygen, high in nutrients
High in oxygen, low in nutrients
High in oxygen, high in nutrients
Low in oxygen, low in nutrients
46
Which water quality test best determines the disruption of photosynthesis due to cloudy water?
Temperature
Turbidity
Salinity
Dissolved Oxygen
47
What chemical water quality test would provide answers as to why dissolved oxygen is dropping?
Fecal coliform test
Secchi disk test
River flow rate
Nitrate test
48
Overgrazing of riparian land near stream banks by livestock can lead to
increasing dissolved oxygen content
changes in local climate from increasing transpiration rates
reduction in gross productivity due increased turbidity
decrease in water temperature in streams
