Front | Back |
The polarity of water molecules is responsible for all of the following, EXCEPT
|
covalent bonding |
The dissolving ability of water is related to
|
Attraction between the water molecule's positive and negative charges on other atoms
|
If a sound pulse is sent vertically downward into the sea and its reflected echo from the seafloor retruns 6 seconds later, the depth of the water is ______ meters (The average speef of sound in seawater is 1500m/sec.)
|
4500
|
Extreme variation in the ocean's temperature is prevented by the water's
|
Heat capacity
|
The _____ wavelengths of light penetrate deepest into the ocean
|
Blue
|
When sea ice forms, the atmosphere above the ice ____ heat at the rate of about _____ calories per g of ice formed
|
Gains: 80
|
Heat is measure in
|
Calories
|
If ocean water were incompressible, sea level would stand _____ its present level
|
Greater than
|
Which method best transmits heat through water?
|
Convection
|
Which substance has the greatest density
|
Cold salt water
|
If the salinity of ocean water is 36%, there are ____ g of salt left from evaporating 2kg of seawater
|
72
|
Ions are removed from seawater by
|
Adsorption
|
Sources of oxygen in the open sea include
|
The atmosphere and photosyntheses
|
The pH of seawater is regulated by
|
Carbon dioxide
|
Which of the following chemicals is commerically extracted from seawater?
|
Bromine
|