Climate
One of the most dramatic forms of weather occurs over the oceans: tropical
cyclones (also called "typhoons" and "hurricanes"
depending upon where the system forms). Ocean currents greatly affect
Earth's climate by transferring warm or cold air and precipitation to
coastal regions, where they may be carried inland by winds. The Antarctic
Circumpolar Current encircles that continent, influencing the area's climate
and connecting currents in several oceans.
Ecology
The oceans are home to the majority of plant and animal life on Earth.
These lifeforms include:
fish
cetacea such as whales, dolphins and porpoises,
cephalopods such as the octopus
crustaceans such as lobsters and shrimp
marine worms
plankton
krill
Economy
The oceans are essential to transportation: a huge portion of the world's
goods are moved by ship between the world's seaports. Important ship canals
include the Saint Lawrence Seaway, Panama Canal, and Suez Canal.
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