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  2. Hemispheres of Earth - Wikipedia

    en.wikipedia.org/wiki/Hemispheres_of_Earth

    It includes North America, Europe, Asia, and most of Africa. Southern Hemisphere: The half that lies south of the Equator. It contains approximately 32% of Earth's landmass and is home to about 10% of the global population. It includes South America, Australia, Antarctica, and the southern parts of Africa.

  3. Equator - Wikipedia

    en.wikipedia.org/wiki/Equator

    The Equator during the boreal winter, spanning from December to March. The equator is a circle of latitude that divides a spheroid, such as Earth, into the Northern and Southern hemispheres. On Earth, the Equator is an imaginary line located at 0 degrees latitude, about 40,075 km (24,901 mi) in circumference, halfway between the North and South ...

  4. Southern Hemisphere - Wikipedia

    en.wikipedia.org/wiki/Southern_Hemisphere

    The Southern Hemisphere from above the South Pole. The Southern Hemisphere is highlighted in yellow. The hemispheres appear to be unequal in this image because Antarctica is not shown. The Southern Hemisphere is the half (hemisphere) of Earth that is south of the Equator. It contains all or parts of five continents [1] (the whole of Antarctica ...

  5. Geography of North America - Wikipedia

    en.wikipedia.org/wiki/Geography_of_North_America

    With an estimated population of 580 million and an area of 24,709,000 km 2 (9,540,000 mi 2), the northernmost of the two continents of the Western Hemisphere [1] is bounded by the Pacific Ocean on the west; the Atlantic Ocean on the east; the Caribbean Sea on the south; and the Arctic Ocean on the north. The northern half of North America is ...

  6. Tropics - Wikipedia

    en.wikipedia.org/wiki/Tropics

    World map with the intertropical zone highlighted in crimson Areas of the world with tropical climates. The tropics are the regions of Earth surrounding the Equator.They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at 23°26′09.9″ (or 23.43608°) N and the Tropic of Capricorn in the Southern Hemisphere at 23°26′09.9″ (or 23.43608°) S.

  7. Northern Hemisphere - Wikipedia

    en.wikipedia.org/wiki/Northern_Hemisphere

    Northern Hemisphere. Northern Hemisphere shaded blue. The hemispheres appear unequal here because Antarctica is not shown. Northern Hemisphere from above the North Pole. The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere ...

  8. Intertropical Convergence Zone - Wikipedia

    en.wikipedia.org/wiki/Intertropical_Convergence_Zone

    The ITCZ is visible as a band of clouds encircling Earth near the Equator. The Intertropical Convergence Zone (ITCZ / ɪtʃ / ITCH, or ICZ), [1] known by sailors as the doldrums[2] or the calms because of its monotonous windless weather, is the area where the northeast and the southeast trade winds converge. It encircles Earth near the thermal ...

  9. Geological history of North America - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of...

    Geological history of North America. The geological history of North America comprises the history of geological occurrences and emergence of life in North America during the interval of time spanning from the formation of the Earth through to the emergence of humanity and the start of prehistory. At the start of the Paleozoic Era, what is now ...