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What does permeability mean in reference to aquifers?
Allowing water to flow through the rock
How does a youthful river differ from an old river for each term: straightness, speed, gradient
Young rivers: are straight, fast and steep.
Which number represents condensation?
2
What number represents RUNOFF?
5 or 6 :*) (not 7 haha)
What number represents evaporation?
8
Which number points to percolation or infiltration?
4
Which number points to precipitation?
3
What does the word POROSITY mean?
The amount of PORES or space that exists btwn rocks in an aquifer.
How must you dig a well??
Well below the water table.... or it will run dry!
Define EROSION:
The process of carrying and moving soil & sediment from one place to another
Define LOAD, as in River Load:
The types of solids that a river can carry: suspended, dissolved or bed (bottom)
Define DIVIDE, as in Continental Divide
an area of higher ground between watersheds where the water will drain from
Define tributary:
a stream t hat flows into a river
List the 3 factors that affect stream/river erosion:
Load, Discharge & Gradient!
What does a youthful river have that a mature river doesn't?
WATERFALLS! FAST MOVING WATER!
How do you describe a MATURE river?
has few waterfalls, slower, wider, more turns
What percent of the Earth's water can you drink if you filtered it?
3% about!
Percolation won't happen if the rock is....
 
impermeable
 
permeable
 
dry
 
dissolved
Which one helps to drain a watershed area?
 
surrounding water systems like rivers and lakes
 
septic tanks
 
alluvial plain
 
sewage treatment plant
Between what two areas is the water table found?
The zone of AERATION and SATURATION
When the water table gets BELOW the level of a cave, it could form a...
SINKHOLE
What is the definition of an AQUIFER?
storage and flow of underground water
What powers the water cycle?
the SUN!