Oceanography Quiz

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

• 71%

• 50%

• 35%

• 30%

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

• Atlantic

• Arctic

• Indian

• Pacific

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

• ellipsoid

• geoid

• projection

• local sea level

Island arcs are most often associated with __________.

• oceanic trenches

• fracture zones

• continental shelves

• mid-ocean ridges

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

The most abundant salt found in ocean water is __________.

• calcium sulfate

• magnesium bromide

• magnesium chloride

• sodium chloride

Tags

NGSS.MS-PS1-1

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

• argon

• carbon dioxide

• nitrogen

• oxygen

Seawater temperature near the ocean bottom

• is much warmer near the Equator than near the North Pole.

• varies widely all over the world.

• varies little all over the world.

• is about the same as it is near the surface.

Tags

NGSS.MS-ESS2-6

How does the temperature, pressure, and density of water typically change as you ascend from the floor of the ocean to the surface?

• Temperature decreases, pressure decreases, and density increases.

• Temperature increases, pressure increases, and density increases.

• Temperature increases, pressure decreases, and density decreases.

• Temperature decreases, pressure increases, and density increases.

Sound in seawater travels

• faster than in air.

• slower than in air.

• the same speed as in air.

• faster or slower than in air, depending on temperature.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

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

• abyssal zone

• intertidal zone

• littoral zone

• photic zone