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Unit 4 Study Guide

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Last updated over 3 years ago
40 questions
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The water cycle is continually moving

True
False
What does evaporation change water to?
liquid
gas
nothing, it's water
solid
What does condensation
change water to?
liquid
gas
nothing, it's water
solid
What are two ways that water enters the atmosphere to become water vapor?
evaporation and transpiration
condensation and crystallization
precipitation and condensation
surface run-off and groundwater flow
During which process of the water cycle does water vapor cool in the air to form clouds?
evaporation
transpiration
respiration
condensation
When run-off water seeps through porous soil, it becomes ________.
surface-water flow (surface water run-off)
transpiration
groundwater flow (groundwater run-off)
precipitation
In which part of the water cycle do plants release excess water vapor into the atmosphere?
photosynthesis
evaporation
transpiration
precipitation
What are the two driving forces behind the water cycle?
gravity and heat energy from the Sun
Earth's revolution around the Sun and gravity
thermal energy and the moon
gravity and the Earth's rotation
What percent of the Earth's water
is fresh water?

10%
97%
3%
5%
The largest reservoir of freshwater that is available to humans is ____________.
Lakes and Reservoirs
Glaciers
Groundwater
River Water
Approximately ____________ percent of Earth's area is represented by oceans and marginal seas.
50
60
70
80
90
Most freshwater on Earth exists in:
groundwater
rivers and lakes
runoff
glaciers and ice
Most of the water on Earth exists primarily in which of the following locations?
Oceans
Rivers and lakes
Groundwater
Glaciers and ice
What is the process by which water enters the small pore spaces between particles in soil or rocks?
transpiration
infiltration
precipitation
sublimation
Look at the image above. What is the difference between the saturated and the unsaturated zones of ground water?
the saturated zone has a higher porosity than the unsaturated zone
the saturated zone has a lower porosity than the unsaturated zone
the pore spaces in the saturated zone are completely full of water; the pore spaces in the unsaturated zone are not completely full of water.
the pore spaces in the saturated zone are not completely full of water; the pore spaces in the unsaturated zone are completely full of water
The boundary between the saturated zone and the unsaturated zone is called the _____.
water table
aquifer
aquiclude
porosity
Ground water is:
precipitation that accumulates underground.
water from magmatic sources that accumulates underground.
water that has always been underground.
water the leaks into the ground from lakes, rivers, and reservoirs.
Rain and precipitation causes the water table line to move:
Upward as more water fills the pore spaces of rock and sediment.
Downward as less water fills the pore spaces of rock and sediment.
Drought or lack of rain causes the water table line to move:
Upward as more water fills the pore spaces of rock and sediment.
Downward as less water fills the pore spaces of rock and sediment.
Match the type of pollution with its cause.
Mercury or Heavy Metals
bacteria from mammal waste
Plastic
can enter the water as part of acid mine drainage or as metals leach into water over time.
PCBs
Can enter the water as fertilizer, soaps, or detergents enter waterways.
Sediment
a group of chemicals that don't easily break down that was manufactured to produce patins, plastics, and electrical equipment.
Coliform Bacteria
washes into rivers due to runoff, makes the river more turbid or cloudy.
Nutrients
breaks down into smaller and smaller pieces, often accumulates in the ocean in the middle of major ocean gyres; can be harmful to marine wildlife.
Which type of pollution can you easily identify the source?
Point Source
Non-Point Source
Which is an example of non-point source pollution?
Red water running directly out of an old mine.
A pipe from an industrial factory directly putting chemical wastes into a river.
Agricultural runoff from fields of land carrying sediment and nutrients.
Match the stage of wastewater treatment with what it removes:
Secondary
lets most remaining solids and oils settle after large items have already been removed from the wastewater.
Tertiary
adds bacteria and oxygen to help remove any dissolved organic matter in the water; after this stage bacteria are killed usually with chlorine.
Primary
any additional treatment is done at this stage, like removal of nitrogen and phosphate nutrients.
Match the disaster with the correct description:
Deepwater Horizon Disaster
occured when an oil tanker ran aground in Alaska in 1989, led to legislation that required oil tankers at sea to have an inner and outer hull
Exxon Valdez Disaster
occured when an oil rig experienced a blowout that was unable to be capped for four months in the Gulf of Mexico
What do we call the constantly moving system of deep-ocean circulation driven by differences in temperature and salinity?

California Current
Surface Currents
Global Conveyor Belt
Gulf Stream
Salt water is _____________ fresh water.
more dense than
less dense than
the same density as
As the temperature of ocean water changes from 10 to 30 degrees C, how does the density change?
The water becomes more dense
The water becomes less dense
The density does not change
It is impossible to predict
What factors create deep ocean currents?
Increase in salinity; increase in temperature
Increase in salinity; decrease in temperature
Decrease in salinity, decrease in temperature
Decrease in salinity, increase in temperature

Which of the following drives global thermohaline (conveyor belt) circulation?
changes in density
changes in pH
changes in wind direction and velocity
changes in gravity
What is the upward movement of cold water from the ocean depths called?
La Nina
Upwelling
Global warming
El Nino
what is density?
mass per unit volume
weight per mass
mass per unit area
weight per volume
The energy that drives surface ocean currents comes from ____.
wind
wave action
temperature declines
salinity variations
Ocean currents tend to move warm water where?
Towards the poles
Towards the equator
Ocean currents tend to move cold water where?
Towards the poles
Towards the equator
Ocean currents that are warm tend to cause what type of change to the climate of an area?
They make it warmer than it otherwise would be.
They make it colder than it otherwise would be.
Ocean currents that are cold tend to cause what type of change to the climate of an area?
They make it warmer than it otherwise would be.
They make it colder than it otherwise would be.
What is the name of the current that makes Western Europe and the East Coast of North America slightly warmer?
Humbolt Current
Peru Current
Gulf Stream Current
California Current
What process brings cold water that is nutrient rich towards the surface?
Upwelling
Downwelling
Erosion
El Nino
Where can upwelling occur?
Along the western coastline of major continents, where cold water moves upwards towards the shoreline.
Along the eastern coastline of major continents, where warm water moves upwards along the shoreline.
Match the type of shoreline feature to the proper term.
Beach Nourishment
large piles of boulders or concrete built on either side of a coastal inlet to let a channel stay open for boats; built to prevent rivermouths or streams from meandering naturally; they completely disrupt and redirect the longshore current.
Barrier Island
a shorline structure made of wood or boalders, concrete, or steel; designed to interrupt the longshore current eroding away the beach; causes more erosion on one side of the structure and less on the other side.
Sea walls
islands along the coast of a continent that are long, narrow offshore desposts of sand or sediment that parallel the coastline.
Jetty
a strcture meant to stop the nautral movement of sand by the waves that crash on the shore; temporarily hold back the ocean; built of concrete, wood, or steel and is a large wall that runs parallel to the beach.
Groin
adding sand back to the beach as a replacement for all the sand that was lost due to erosion.