Oceanography Flashcards

Front

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

Back

71%

Front

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

Back

Pacific

Front

The mathematical model that approximates the earth’s average surface elevation is called the _______.

Back

Geoid

Front

Island arcs are most often associated with _______.

Back

Oceanic trenches

Tags

NGSS.MS-ESS2-3

Front

A Pacific Ocean atoll could have formed when _______.

Back

Either a volcanic island collapsed into a flooded caldera on whose rim coral reefs grew, or a shallow seamount sank or sea level rose above the seamount, forcing corals to grow upward from the crater rim and forming shallow reefs.

Front

The most abundant salt found in ocean water is _______.

Back

Sodium chloride

Front

Gas more abundant in the lighted zones near the ocean surface

Back

Oxygen

Tags

NGSS.MS-LS1-6

Front

Where do most minerals go as the ocean's salinity rises slowly

Back

Minerals settle out of the water, forming sediments.

Front

Seawater temperature near the ocean bottom

Back

Varies little all over the world.

Front

Changes from the ocean floor to the surface

Back

Temperature increases, pressure decreases, and density decreases.