Practice Questions and Answers for SWS Exam 2 Final
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Course
SWS
Institution
SWS
Practice Questions and Answers for
SWS Exam 2 Final
3 basic types of Florida Rivers - CORRECT ANSWER-1. Alluvial river: large, well
defined watershed
2. Blackwater river: drains pine flatwoods and cypress swamps, has dark and stained
water
3. Spring-fed river: cool, clear water is...
Practice Questions and Answers for
SWS Exam 2 Final
3 basic types of Florida Rivers - CORRECT ANSWER-1. Alluvial river: large, well-
defined watershed
2. Blackwater river: drains pine flatwoods and cypress swamps, has dark and stained
water
3. Spring-fed river: cool, clear water issuing from springs
Why river flow in Florida generally is very slow - CORRECT ANSWER-Rivers flow due
to gravity, not a lot of elevation in FL (tipography)
What is a river gradient - CORRECT ANSWER-Difference in elevation / distance
between points
3 basic features of Florida lakes - CORRECT ANSWER-Generally small, shallow, and
warm
Euphotic zone in a lake - CORRECT ANSWER-Light sufficient for photosynthesis
Disphotic zone in a lake - CORRECT ANSWER-Light insufficient for photosynthesis
#1 source of lake formation in Florida - CORRECT ANSWER-Sinkhole lakes
Okeechobee is what type of lake? - CORRECT ANSWER-Ancient Depression Lake
How groundwater use in Florida compares with groundwater use in the US - CORRECT
ANSWER-63% of Groundwater from FL, 21% of groundwater from US
Know the two factors that lead to the doubling of Florida population between 1950 and
1970 - CORRECT ANSWER-Air conditioning, mosquito control, WW2 veterans
How much water is withdrawn daily in Florida - CORRECT ANSWER-7 billion gall / day
Limestone is the common name for what compound? - CORRECT ANSWER-Calcium
Carbonate
Ions are generally well accommodated in ________________. - CORRECT ANSWER-
water
How are the oceans made salty - CORRECT ANSWER-Water moving across the
landscape, through river channels, through water systems, dissolving rocks, minerals,
salts, etc., evaporation from the oceans concentrates the salt
, What is "precipitation" - CORRECT ANSWER-(precipitation of calcium carbonate) When
two elements become re-situated in water they can reform into a solid
How does precipitation apply to limestone formation - CORRECT ANSWER-The solid
rock sinks to the bottom and creates a limestone layer
What is the dominant mechanism by which limestone formations are made - CORRECT
ANSWER-By organisms, marine invertebrates
The fundamental evolution of the carbonate elements of the Florida Platform.
(time frames, origin of the carbonates, general conditions relative to sea levele) -
CORRECT ANSWER-Rock is formed, 150 mya: limetsone is formed, 50 mya-25 mya:
water bearing unit
The time period during which the water-bearing elements of the Floridan aquifer
developed - CORRECT ANSWER-Early/Middle Eocene: 50-34 mya
Oligocene: 34-25 mya
Why continental silicon-based materials did not intrude substantially on the platform for
approximately 125 mil. years and the changes that occurred that allowed them to
influence the Florida platform subsequently - CORRECT ANSWER-Sediments were
flowing downhill, Suwannee current was formed to keep sediments from forming
limestone and water bearing unit, clay starts to form on top of water-bearing unit, which
creates the upper unconfined unit
How the Floridan aquifer is confined - CORRECT ANSWER-by the layer of clay formed
Given that the Floridan is consolidated, understand how it is made porous and able to
contain and transmit water - CORRECT ANSWER-acid dissolution (rainfall)
Florida's principal aquifer system is ______________ and ______________. -
CORRECT ANSWER-confined and consolidated
What are Karst landscapes and their general features? - CORRECT ANSWER-Areas
that are extensively overlaid by calcium carbonate (limestone), creates depressional
areas and sinkholes
Why does FL have extensive areas of Karst? - CORRECT ANSWER-many sinkholes,
lakes, etc.
Three basic sinkhole types, materials, and how they form - CORRECT ANSWER-
dissolution: limestone covered by a thin layer of sandy material
subsidence sinkhole: thick layer of sand over limestone, sand gradually trickles down
into underlying caverns
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