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  2. Tropics - Wikipedia

    en.wikipedia.org/wiki/Tropics

    As the Earth's axial tilt changes, [a] so too do the tropical and polar circles. The tropics constitute 39.8% of Earth's surface area [1] and contain 36% of Earth's landmass. [2] As of 2014, the region was home also to 40% of the world's population, and this figure was then projected to reach 50% by 2050.

  3. Tropical ecology - Wikipedia

    en.wikipedia.org/wiki/Tropical_ecology

    Tropical ecology is the study of the relationships between the biotic and abiotic components of the tropics, or the area of the Earth that lies between the Tropic of Cancer and the Tropic of Capricorn (23.4378° N and 23.4378° S, respectively). The tropical climate experiences hot, humid weather and rainfall year-round.

  4. Tropical and subtropical grasslands, savannas, and shrublands

    en.wikipedia.org/wiki/Tropical_and_subtropical...

    extent of tropical and subtropical grasslands, savannas, and shrublands. Tropical and subtropical grasslands, savannas, and shrublands is a terrestrial biome defined by the World Wide Fund for Nature. [1] The biome is dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes ...

  5. List of terrestrial ecoregions (WWF) - Wikipedia

    en.wikipedia.org/wiki/List_of_terrestrial_eco...

    The terrestrial scheme divides the Earth's land surface into 8 biogeographic realms, containing 867 smaller ecoregions. Each ecoregion is classified into one of 14 major habitat types, or biomes. In 2017 the WWF team revised ecosystem names and boundaries in the Arabian Peninsula, drier African regions, and Southeastern United States. [1]

  6. Tropic of Cancer - Wikipedia

    en.wikipedia.org/wiki/Tropic_of_Cancer

    The Tropic of Cancer's position is not fixed, but constantly changes because of a slight wobble in the Earth's longitudinal alignment relative to the ecliptic, the plane in which the Earth orbits around the Sun. Earth's axial tilt varies over a 41,000-year period from about 22.1 to 24.5 degrees, and as of 2000 is about 23.4 degrees, which will ...

  7. Tropical climate - Wikipedia

    en.wikipedia.org/wiki/Tropical_climate

    The Köppen climate classification is the most widely used climate classification system. [2] It defines a tropical climate as a region where the mean temperature of the coldest month is greater than or equal to 18 °C (64 °F) and does not fit into the criteria for B-group climates, classifying them as an A-group (tropical climate group). [3]

  8. Tropical rain belt - Wikipedia

    en.wikipedia.org/wiki/Tropical_rain_belt

    The reason the rain belt is situated near the tropics can be attributed to the fact that the Sun's radiation is strongest near the equator, which is located in the middle of the tropics. This solar radiation generates large amounts of heat near the equator. [1] [2] This causes the air at

  9. Tropical geography - Wikipedia

    en.wikipedia.org/wiki/Tropical_geography

    Tropical geography refers to the study of places and people in the tropics.When it first emerged as a discipline, tropical geography was closely associated with imperialism and colonial expansion of the European empires as contributing scholars tended to portray the tropical places as "primitive" and people "uncivilised" and "inferior". [1]

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