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Middle-earth is the setting of much of the English writer J. R. R. Tolkien 's fantasy. The term is equivalent to the Miðgarðr of Norse mythology and Middangeard in Old English works, including Beowulf. Middle-earth is the oecumene (i.e. the human-inhabited world, or the central continent of Earth) in Tolkien's imagined mythological past.
Mother Nature (sometimes known as Mother Earth or the Earth Mother) is a personification of nature that focuses on the life-giving and nurturing aspects of nature by embodying it, in the form of a mother or mother goddess.
Writing genres (more commonly known as literary genres) are categories that distinguish literature (including works of prose, poetry, drama, hybrid forms, etc.) based on some set of stylistic criteria. Sharing literary conventions, they typically consist of similarities in theme/topic, style, tropes, and storytelling devices; common settings and character types; and/or formulaic patterns of ...
Agartha. A village within a mine, visualized by Jules Férat for Verne's Les Indes noires (1877). Agartha (sometimes Agartta, Agharti, Agarath, [1] Agarta, Agharta, or Agarttha) is a legendary kingdom that is said to be located on the inner surface of the Earth. [2] It is sometimes related to the belief in a hollow Earth [3] and is a popular ...
Gaia hypothesis The study of planetary habitability is partly based upon extrapolation from knowledge of the Earth 's conditions, as the Earth is the only planet currently known to harbour life (The Blue Marble, 1972 Apollo 17 photograph).
The Roof of the World or Top of the World is a metaphoric epithet or phrase used to describe the highest region in the world, also known as High Asia. The term usually refers to the mountainous interior of Asia, including the Pamirs, the Himalayas, the Tibetan Plateau, the Hindu Kush, the Tian Shan, and the Altai Mountains.
The word extraterrestrial means "outside Earth". Extraterrestrials are a common theme in modern science-fiction, and also appeared in much earlier works such as the second-century parody True History [1] by Lucian of Samosata.
Earth has a dynamic atmosphere, which sustains Earth's surface conditions and protects it from most meteoroids and UV-light at entry. It has a composition of primarily nitrogen and oxygen. Water vapor is widely present in the atmosphere, forming clouds that cover most of the planet. The water vapor acts as a greenhouse gas and, together with other greenhouse gases in the atmosphere ...