water cycle
water movement
Human Impact
fresh water
salt water
100
What Drives/Powers the water cycle?
the sun
100
The excess water moves along the surface, picking up waste and chemicals, then empties into a large water source.
run-off
100
Overuse of groundwater in agriculture without allowing ample time for recharge may cause...
the sinking of the land (subsidence)
100
The amount of the water on earth that is fresh (lakes, rivers, streams, groundwater, glaciers)
3% is freshwater
100
% of earth's water that is salty/ocean
97% is salt water in oceans
200
describe the change that occurs during evaporation
water changes from a liquid to a gas
200
The underground boundary between the soil and groundwater that will rise and fall as the water levels change.
water table
200
type of pollution that comes directly from a known source
point source pollution
200
The area above the water table where infiltration of ground water occurs
zone of aeration
200
The amount of salt can vary within parts of our ocean.The measure of salt in oceans is called...
Salinity
Most salt content is "briny water"
Less salt content is "brackish water"
300
rain, sleet, snow, and hail are examples of this form of water
precipitation
300
An area of land that drains water from streams/tributaries into a common outlet
watershed or river basin
300
type of pollution that travels as run-off from an unknown source
non-point pollution
300
the source of most of our drinking water from ____
ground water
300
This effect causes winds and ocean currents to form circular patterns
Coriolis Effect
400
what process turns water vapor into clouds?
condensation
400
The movement of sea (salt) water into the fresh water supply is called...
salt water intrusion
400
Fossil fuels emit CO2 that is absorbed by the ocean. This causes sea water to become too ______ and bleaches coral reefs.
acidic
400
an underground source for freshwater that is accessed by wells
an aquifer
400
Oceans absorb heat, causing them to expand and glaciers to melt. This causes...
sea level rising
500
Some of the precipitation that reaches the ground filters down through rocks/sediment to become ground water. This process is called?
infiltration or percolation
500
Deep oceans currents circulate warm water from the ____ and cold water from the _____.
Warm water from the TROPICS/EQUATOR
Cold water from the POLES
500
Increased construction along the water-line removes vegetation and increases ___
erosion
500
Area below the water table where an aquifer of ground water is located.
zone of saturation
500
Name 2 methods used to combat erosion of our shorelines
1. sea walls
2. jettys, groins, breakwaters
3. Beach nourishment