Dissolved Oxygen
What does dissolved oxygen depend on?
water temperature, the amount of dissolved salts present in the water, and atmospheric pressure
Which density is higher ice or water?
water has greater density than ice
What is an estuary?
areas of water and shoreline where rivers meet the ocean or another large body of water
What is the pycnocline in oceanography?
boundary separating two liquid layers of different densities
What is shadow zone
the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves.
What factors increase dissolved oxygen?
Why does ice float on water?
Since the water is heavier, it displaces the lighter ice, causing the ice to float to the top.
What are the 4 types of estuaries?
drowned river valley, bar-built, tectonic, and fjords.
What affects the pycnocline?
changes in salinity or temperature.
How many shadow zones are there?
two different types of shadow zones
Does pH affect dissolved oxygen?
NO
Is water heavier when frozen?
Weight does not change
What changes rapidly in a halocline?
salinity
What causes thermocline?
How shadow zones are formed?
S waves being stopped entirely by the liquid core and P waves being bent by the liquid core.
What happens if there is no dissolved oxygen in water?
water conditions soon become lethal
Why does water have a higher density than ice?
the lattice arrangement allows water molecules to be more spread out than in a liquid,
What is a halocline in the ocean?
vertical zone in the oceanic water column in which salinity changes rapidly with depth, located below the well-mixed, uniformly saline surface water layer.
What is thermocline in a lake?
depth at which the temperature gradient is steepest during the summer
How are SOFAR channel formed?
What reduces dissolved oxygen in water?
Why does water density decrease when it freezes?
What is an example of halocline?
Where is the thermocline in the ocean?
beneath the relatively warm, well-mixed surface layer
What is the SOFAR channel used for?
allows sound to carry great distances.