128Our world
Just one-third of the Earth’s surface is land; the rest is
covered by water. The land is divided into seven vast
landmasses (continents): North America, South America,
Europe, Asia, Africa, Australasia, and Antarctica.
EARTH A night map shows those parts of
the world with plentiful electricity supplies.CONTINENTS OF
THE WORLDINDIAN
OCEAN
ATLANTIC
OCEAN
SOUTHERN OCEAN
ASIA
EUROPE
AFRICA
ANTARCTICA
30°W 0° 30°E 60°E 90°E 120°E30°W 0° 30°E 60°E 90°E 120°E60°N30°N30°S60°STropic of CancerEquatorTropic of CapricornAntarctic CircleArctic Circle