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How many of the 30,000 Pacific seamounts have been explored?
300
Why are seamount chains important for oceanic organisms?
They provide a solid surface for deep ocean organisms to cling to.
Is the Ring of Fire the world’s largest area of volcanism and earthquakes located around the edges of the Atlantic Ocean?
No
What causes salinity variations in the Pacific Ocean?
Winds, precipitation, evaporation.
What sets the water between the tropics in motion?
Trade winds
In which direction do surface currents in the Southern Hemisphere move relative to the wind?
To the left of the wind direction.
Why is the South Pacific subtropical gyre less intense than other gyres?
It lacks confinement by continental barriers along its western margin.
What is considered microplastic debris?
Plastic measuring 5 mm or less.
What causes water to pile up in the center of the subtropical gyre?
The subtropical convergence of water in the middle of the gyre produced by a hemisphere’s clockwise or counterclockwise rotation.
What is western intensification and what causes this phenomenon?
Characteristics observed in western boundary currents due to the Coriolis effect.
Which currents are broad, shallow and less defined?
Eastern boundary currents.
How is the climate of continental margins that have cold ocean currents offshore?
Dry
What is the western boundary of the Pacific Ocean?
Asia and Australia.
Which one belongs to the Pacific Ocean?
Irish Sea
Greenland Sea
Philippine Sea
Baltic Sea
Hudson Bay
Philipine Sea
