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## Asia - Covers one-third of the Earth's surface, entirely in the Northern Hemisphere - The largest continent - Highest point: Mount Everest (8848 m) - Lowest point: Dead Sea (400 m below sea level) - The Plateau of Tibet: Known as the Roof of the World. The highest and largest plateau - Lake Bai...

## Asia - Covers one-third of the Earth's surface, entirely in the Northern Hemisphere - The largest continent - Highest point: Mount Everest (8848 m) - Lowest point: Dead Sea (400 m below sea level) - The Plateau of Tibet: Known as the Roof of the World. The highest and largest plateau - Lake Baikal: The world's deepest lake (1637m). A freshwater lake - Cherrapunji (India): The world's highest average rainfall (2600 mm) - Ganga and Brahmaputra rivers: Form the largest delta in the world - Nearly 60% of the world's population lives in the fertile river valleys of the Yangtse, Indus, and Ganga-Brahmaputra - Ancient civilisations thrived in the river valleys of the Tigris and Euphrates, the Indus, and the Huang He. ## Africa - The second largest continent - Separated from Asia by the Suez Canal and from mainland Europe by the Strait of Gibraltar - Unhabitable terrain and unfriendly climate, often called the "Dark Continent" - Geologically the oldest continent. Formed the core of the landmass of Gondwanaland, when the ancient continent Pangaea broke up about 200 million years ago - The only continent that lies in all four directional hemispheres: Northern, Southern, Eastern, and Western - The Equator passes through the middle of Africa. - The Tropic of Cancer and the Tropic of Capricorn cut through the continent.