Most oxygen enters the ocean from

Gases dissolve most easily in

Ocean water temperature depends on the solar energy an area receives and the water’s

As deep ocean water becomes colder, it also becomes

Two factors that affect the salinity of ocean water are

Cold ocean water sinks and moves through the

Marine organisms help balance the chemistry of ocean water by removing nutrients and gases and

The ocean is the main source of the trace minerals

The layer in a body of water in which temperature drops with increased depth faster than it does in other layers is called the

In addition to increased use of toxic chemicals, what has reduced the ocean’s ability to renew itself?

The process of removing salt from ocean water is called

The two principal gases dissolved in ocean water are

As the temperature changes, the ocean and atmosphere are continuously exchanging

Oceans are often referred to as a carbon sink. How many times more carbon is contained in the ocean than in the atmosphere?

Trace elements in the ocean are those minerals that are

By studying variations in color in the ocean, scientists can determine the presence of

What percentage of the ocean is made of salts?

Plankton are the foundation of life in the ocean because they

What is the name for the movement of deep, cold an nutrient-rich water to the surface?

A layer of ice covering ocean water in polar regions is called

When surface ocean water is warmed by solar energy, its density

Although most wavelengths of visible light are absorbed at varying degrees by ocean water and microscopic sea life, the one color that is most reflected is

Volcanic eruptions, chemical weathering of rock on land, and chemical reactions between sea water and newly formed sea-floor rocks provide most of the raw elements that form this dissolved solid in the ocean.

The most valuable ocean resource, found beneath the ocean floor, is

Which of the following causes gyres to form?

One characteristic of the Antarctic Bottom Water is

Which of the following factors does NOT control the movement of surface currents?

High evaporation and low rainfall in summer cause the Mediterranean Sea to have

As water carried on to a beach by breaking waves is pulled back into deeper water, an irregular current is formed, called a(n)

The major cause of tides is the

The curving of the path of ocean currents and wind belts is called

Deep currents are caused by

Which of the following forms when water from large breakers returns to the ocean through channels that cut through underwater sandbars?

The highest point of a wave is its

Calling a tsunami a tidal wave is misleading because

The force that causes tides is

The swift, warm current that flows northward along the east coast of the United States is called the

What is the effect of wind energy on waves?

A turbidity current is a type of

A tsunami has a tremendous amount of energy because of its

In the tropical latitudes, trade-wind belts push currents