Ground Water
The upper boundary of a zone of saturation is called
the water table
Rivers whose stream slope and power to erode have increased
Rejuvenated Rivers
A natural or artificial lake used to store and regulate water
A reservoir
A shallow body of water with mud or silt on the bottom
A pond
The balanced total of all the water on Earth through the water cycle
the water budget
A large underground chamber formed when cracks in rocks are dissolved by ground water
These rivers are slow moving and do not efficiently drain watersheds
Old Rivers
What is a dam?
a structure built across a river to regulate its flow
What is a dead zone?
an area that has been depleted of oxygen by eutrophication
Which process(es) of the water cycle can be considered the "paycheck"
precipitation
What is a zone of saturation?
an area of rock and soil whose spaces are completely filled with ground water
These rivers are winding, fed by many tributaries, and their channels are wider than deeper
Mature Rivers
What is a levee?
A structure built to prevent a river from overflowing
How does algal bloom occur?
When nutrients such as nitrogen and phosphorus runoff from the land, water can become over enriched.
What process(es) of the water cycle can be considered "expenses"?
Evaporation, transpiration, condensation
What are geysers?
hot springs that periodically erupt
These rivers are fast-flowing, carry small volumes of water, and their channels are deeper than wider
Youthful Rivers
No pollution
It is one of the cheapest sources of energy
It is a renewable resource
What is an oxbow?
a pond or lake formed when a bend of a river is cut off from the main channel
True or false: Local water budgets are not always balanced, but the water budget of the entire earth is balanced
True
What is karst topography caused by?
Large amounts of chemical weathering by ground water. Specifically by carbonic acid
How do rivers become rejuvenated?
When a tectonic plate uplifts, it makes the channel steeper
Name two ways that dams can be harmful
Debris and heavy metals can build up in reservoirs
Dams can kill fish and prevent their movement
Cause temperature changes that can kill organisms
What is eutrophication?
The process by which a body of water becomes over-enriched with nitrates or phosphates
What is a sinkhole and how does it form?
A circular depression in the ground that forms when the roof of an underground cave collapses