BJU Earth Science - Ch. 13

Organisms that are not attached to or do not liv eon the ocean floor are considered ___ organisms.

Minimizing the runoff of articial fertilizers into the ocean is an important part of exercising Biblical dominion.

What is C?

In general, seawater temperature ___ from the surface to the bottom.

Which of the following elements is the main chemical building block of all living things?

How does the temp, pressure, and denisty of ocean water typically change from the floor to the surface?

Sea level that varies with the tide and differs from place to place is called the ___ sea level.

According to the Genesis Creation account, on Day 3, God created our oceans as they are today.

About what percentage of the earth's surface is covered by oceans?

What is D?

The most abundant salt found in ocean water is ___

What is F?

Define mean sea level and tell why it is important.

An oceanographer is a(n) ___ scientist.

In which life zone must organisms cope with the greatest variability of conditions?

The mathematical model that approximates the earth's average surface elevation is called the ___.

What is E?

Carbon in the atmosphere is typically in the form of ___.

Narrow ocean bays fed by a large freshwater river at one end become more ___ as one approaches the end of the day.

An atoll is a fringing ring of coral refs surrounding an island.

If the atmosphere is 78% nitrogen, why is the nitrogen cycle between the sea and other environments so complex?

The shallow, submerged edge of a continent is called a(n) ___.

While minerals flow into an ocean, the oceans salinity rises only very slowly. Where do most of the minerals go?

Organisms that live between the low tide mark at the shore and the edge of the contintenal shelf live in the ___ zone.

I must write a good essay on one of the following topics (choose all here):

Sections of the oceans that are more or less surrounded by land are called ___.

The near-shore littoral and open ocean photic zones include the same depth band of the oceans.

Typical seawater contains about 3.5 grams of salt per kilogram of seawater.

The water in the Chesapeake Bay is saltier than the water in the Atlantic Ocean.

Pacific Ocean atolls could have formed when ___.

Seawater has a lower freezing point than freshwater does.

What is A?

What is H?

What is B?

The intertidal zone is the life zone just below the lowest low tide near shore.

Seawater temperature near the ocean bottom

Which of the following gases is more abundant in the light zones near the surface than in the dark regions of the ocean?

In general, the speed of sound in seawater ___ from the surface to the bottom.

Underwater ridges of rocklike sructures formed by organisms that support a large variety of life are called ___.

The oceans of the world are divided into four completely separate basins.

Mean sea level is slowly rising in most locations around the world.

Because clams, corals, and anemones are attached to or live on the bottom, we call them ___ organisms.

Which ocean basin covers the largest percentage of the earth's surface?

Cyanobacteria in the oceans are a key part of the ___ cycle.

Island arcs are most often associated with ___.

Below the photic zone in the ocean, there are no organisms that use ___ for nourishment.

Sound in seawater travels

Why is the current salinity of the ocean a problem for old-earth geologists?

Of those listed below, the most important source of fixed nitrogen for marine organisms is ___.