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Hydrology - 40 questions Flashcards | StudBud
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Hydrology - 40 questions
Hydrology - 40 questions
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#science #review
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
How would you describe turbidity?
cloudiness of the water
how pure the water is
how clean the water is
how hot the water is
2
What causes eutrophication?
increased nitrate levels
sunlight
increased oxygen levels
increased pH levels
3
Which is an effect of chlorine in water
improves the taste
kills the microorganisms
aerates the water (adds air)
4
Which hazard must submersible vehicles overcome while exploring the deep ocean zone?
high water pressure
increased salinity
high waves
underwater mountain ranges
5
How does increased algae growth affect the quality of water?
increases pH
Makes it cleaner
decreases the dissolved oxygen
increases turbidity
6
Which would most likely result in an unhealthy aquatic habitat?
increase in dissolved oxygen levels
decrease in nitrate levels
increase in water temperature
decrease in turbidity
7
How can dissolved oxygen levels be increased in nature?
increase turbidity
increase pH
increase nitrate levels
waves or turbulance
8
Which provides the largest source of dissolved oxygen in the ocean?
coral reefs
hydrothermal vents
tidal action
algae growth
9
Which is true concerning the structure of the hydrosphere?
There are many oceans with many basins.
There is one ocean with one basin.
Ocean is connected to many lakes, watersheds and waterways.
There is no connection of lakes and rivers to the ocean.
10
Which is an example of non-point source pollution?
drainage pipe dumping into the river
buried barrels that are leaking
Jacob pouring motor oil into the stream
warm waters from a factory being dumped into the river
11
What happens to a biological indicator when there is a sudden change in pollution?
significant decrease in population
reproduce at lower rate
reproduce at higher rates
significant increase in population
12
Which is Earth's largest source of drinkable water?
aquifers
lakes
rivers
oceans
13
Which is the most abundant freshwater resource in North Carolina?
estuaries
oceans
rivers
icebergs
14
Which
best
describes the water found in estuaries?
salt water
brackish
freshwater
15
What does EPA stand for?
Enhanced Protection Association
Environmental Photography Association
Enhanced Photosynthesis Academy
Environmental Protection Agency
16
How does upwelling generally affect the dissolving of gases in ocean water?
warmer water decreases the amount of gas dissolved
cooler water decreases the amount of gas dissolved
cooler water increases the amount of gas dissolved
warmer water increases the amount of gas dissolved
17
What happens to a biological indicator when there is a sudden change in pollution?
significant increase in population
reproduce at lower rate
reproduce at higher rates
significant decrease in population
18
Which is the main source of dissolved oxygen in the ocean?
decay of living organisms
animals that live near the surface
underwater earthquakes
plants and algae that live near the surface
19
What layer would you need to reach with a water well?
impermeable rock layer
water table
permeable rock layer
saturation zone
20
What word best describes groundwater?
aquifer
turbid
polluted
acidic
21
What would happen if temperatures of Earth's oceans suddenly increase?
ocn levels wld decr. due to increased plant and animal mass
ocean levels would decrease due to increased evaporation
ocean levels would decrease due to more seeping into ground
ocean levels would increase due to polar ice melting
22
Where would you find benthos organisms?
on land
top of the water column
floating around anywhere in the water column
bottom of the water column
23
Which is an affect of smoke and exhaust pollution?
acid rain
green slime running out of a drain pipe
pollutants seeping up from the ground
increased turbidity
24
Which
best
describes the process by which water from the ocean enters the atmosphere?
condensation
precipitation
infiltration
evaporation
25
How much of Earth's water is freshwater?
70%
.34%
97%
3%
26
Why do governments want to protect the quality of their waters?
to sell to other states
to help prevent global warming
to save the environment for future generations
to maintain a healthy environment
27
What does a pH of 7 most likely indicate about the water quality?
the water is safe to drink
the water is a strong base
the water is toxic to drink
the water is highly acidic
28
What is an example of a nekton organism?
dolphin
plankton
tube worm
lobster
29
Which human activity has the
most
negative impact on water quality?
recreational boating
washing clothes
agriculture
flushing toilets
30
Which best explains the importance of pH in determining the health of a water system?
low pH in ground water promotes growth of plants
variations in pH can indicate toxic substances
most organisms are able to adapt to changing water pH
pH changes can affect the ability of water to absorb gases
31
Which
best
describes the role of the water cycle?
circulates existing water on Earth
increases usable supply of Earth’s water
reduces pollution in most of the water
32
Which location would be the
best
choice for the new well?
S
R
T
Q
33
How does temperature affect dissolved oxygen?
increased temperature causes increased DO
increased temperature causes no change in DO
decreased temperature causes increased DO
decreased temperature causes decreased DO
34
Which is the
most likely
effect of too much nitrogen and phosphorus flowing into a lake?
greater salinity
lower temperature
algal blooms
decreased turbidity
35
Why do plankton not grow in the deep ocean?
because sunlight does not reach the deep ocean
because there are not enough dissolved gases to support it
because too many animals eat it before it can grow
36
Which process would most likely increase the dissolved oxygen level in a lake?
lake turnover
algae bloom
respiration
photosynthesis
37
Where is most of Earth's freshwater stored?
lakes and rivers
underground
the atmosphere
ice caps and glaciers
38
Which
best
describes the importance of an aquifer?
It supplies all water for lakes and rivers.
It holds uncontaminated ground water for human consumption.
It provides water for oceans.
39
Which will occur if humans continue to overload water systems with excess nutrients?
photosynthesis
chemosynthesis
nitrification
eutrophication
40
Which
most likely
would cause diseases to be spread by polluted water?
\
runoff that contains fertilizers and pesticides
oil spill from a ship carrying oil as cargo
dumping human waste in rivers and streams
