Oceanography

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The average salinity of typical seawater is

3.5%

The most likely place to find abundant manganese nodules is on the

Abyssal plain far from a continent

Which of the following is not an important control on oceanic sediment accumulation

All of the above factors are important

All of the following statements regarding pH are true except

As a whole, the pH of the ocean is slightly acidic

The amount of energy that is necessary to raise the temperature of ow gram of water by one degree c is the definition of

Calorie

Sediments with an extraterrestrial origin are called

Cosmogenous

As the salinity of seawater increases, it's

Density increases

All of the following are lithogenous sediments except

Diatom ooze

All of the following processes decrease the salinity of water except

Evaporation

In distillation, saltwater is highly pressurized to drive water molecules through a membrane to remove salts

False

Processes that decrease seawater salinity include evaporation and sea ice formation

False

A very important way to increase the settling rate of fine particles in the open once an is via

Fecal pellets

An area of the ocean where rapid change in ocean density occurs with a change in depth is the

Halocline

Which property of water causes coastal communities to have only moderate differences in daily highs and lows when compared to inland communities

High heat capacity

Water can pile up a short distance above a container's rim due to

High surface tension

In comparison to most other liquids, the heat capacity of liquid water is

Higher than other liquids

Sediments produced because of chemical reactions in seawater are called

Hydrogenous

The transfer of water between the atmosphere, the oceans, and the continents is known as the

Hydrologic cycle

A beaker contains mixture of ice and pure liquid water at 0•c. What happens to the temperature of the liquid water as heat is added

It remains constant until the ice melts, and then it begins to rise

High energy environments are most likely to deposit which one of the following

Large particles such as gravel

Sediments found on continental margins are called

Neritic

All of the following are methods used to desalinate water except

Osmosis

The surface tension of water

Relatively high

The covalent bonds form between hydrogen and oxygen atoms in a water molecule form as a result of the

Sharing of elections between atoms

The states of matter in which water exists is primarily determined by

Temperature

Hydrogen bonds form between neighboring water molecules because of

The polarity of water molecules

The principle of constant proportions states that

The relative concentrations of the major ions in seawater does not change

A rapid change in ocean temperature with a change in depth occurs in the

Thermocline

Evaporation causes cooling in the liquid left behind

True

The density of seawater is affected by salinity and temperature

True


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