water properties
lakes
aquatic ecosystems
conservation
oceanic zones
100
this holds water molecules together
What is a hydrogen bond
100
this is where most lakes on Earth are located
What is the Northern Hemisphere
100
these are the most biologically diverse of all ecosystems
What is wetland
100
constructing these interferes with fish migrations
What is a dam
100
the depths beyond which less than 1% of sunlight penetrates
What is the aphotic zone
200
this is the reason why the temperature of water changes slowly
What is its high specific heat capacity
200
Are lakes are ____ over geologic time scales
What is temporary
200
this term refers to groundwater accumulating above an area of low permeability such as clay
What is perched
200
This agricultural method of irrigation reduces evaporation
What is drip irrigation
200
the ecological region at the lowest level of a body of water
What is the benthic zone
300
what does water do when it freezes
What is expands
300
this can be used to determine the level of turbidity or eutrophication in a lake
What is a Secchi Disk
300
approximately this percent of the Earth's surface is covered by the ocean's
What is 71%
300
this includes turning of the shower while washing and brushing teeth
What is changing your personal habits
300
The region of open sea beyond the edge of the ontinental shelf
What is the oceanic zone
400
what water filters out in aquatic ecosystems
What is UV radiation
400
the bottom of a lake can be composed of a wide variety of this material
What is inorganic
400
This is the number of marine life-forms are currently known
What is approximately 250,000
400
this is informing the general public
What is education
400
includes all open ocean regions
What is the pelagic zone
500
water dissolves these
What is many compounds
500
this is the open water zone in a lake
What is the photic zone
500
this is a geological formation that contains water in quantities sufficient to support a well or spring
What is an aquifer
500
this is three to four times more expensive than any other process
What is desalinization
500
The depth of the water that is exposed to sufficient sunlight for photosynthesis to occur
What is the photic zone
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