An ocean is a vast body of saltwater covering approximately 71% of Earth’s surface. It is composed of interconnected bodies of water, including the Pacific, Atlantic, Indian, Southern, and Arctic Oceans. Oceans play a crucial role in regulating the planet’s climate, absorbing carbon dioxide, and supporting diverse ecosystems. They influence weather patterns, currents, and marine life habitats. Oceans are teeming with biodiversity, from microscopic plankton to massive marine mammals, and they provide vital resources such as food, transportation routes, and recreational opportunities for humans worldwide.
The spot-tail shark, or sorrah shark, is a species of requiem shark, in the family Carcharhinidae. They are found in the tropical Indo-West Pacific Ocean between latitudes 31°N and 31°S, from the surface to a depth around 72 m (236 ft). This shark grows to about 1.6 m (5 ft 3 in). It is fished […]
Valle del Cauca, or Cauca Valley, is a department of Western Colombia. It is on the western side of the country, abutting the Pacific Ocean. Its capital is Santiago de Cali. Such other cities as Buenaventura, Buga, Cartago, Palmira and Tuluá have great economical, political, social and cultural influence on the department’s life. Valle del
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Insects (from Latin insectum) are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at
Europe is a continent that lies fully in the Northern Hemisphere and primarily in the Eastern Hemisphere. It consists of the westernmost peninsulas of Eurasia’s continental landmass, shares the continental landmass of Afro-Eurasia with both Asia and Africa, and is bounded by the Arctic Ocean to the north, the Atlantic Ocean to the west, the
Continental drift is the theory that the Earth’s continents have shifted relative to one another during geologic time, giving the impression that they have “drifted” over the ocean floor. Abraham Ortelius proposed the theory that continents ‘drifted’ in 1596. Alfred Wegener separately and more extensively established the notion in 1912, but his hypothesis was dismissed
An ocean is a vast body of saltwater that covers approximately 71% of Earth’s surface and contains more than 97% of the planet’s water. Oceans are essential for regulating climate, supporting biodiversity, and sustaining human economies. They form the major component of the hydrosphere and are divided into five primary regions: Pacific, Atlantic, Indian, Southern,
The continent of Australia, sometimes known in technical contexts by the names Sahul, Australia–New Guinea, Australinea, Meganesia, or Papualand to distinguish it from the country of Australia, consists of the landmasses located next to Wallacea. The name “Sahul” takes its name from the Sahul Shelf, which is part of the continental shelf of the Australian continent. The continent includes mainland Australia, Tasmania, the island of New Guinea (Papua New Guinea and portions of Indonesia), the Aru Islands, the Ashmore
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The Bahamas, known officially as the Commonwealth of The Bahamas, is a country within the Lucayan Archipelago of the West Indies in the Atlantic. Nassau, on the island of New Providence, serves as the country’s capital. According to the Royal Bahamas Defence Force, The Bahamas‘ territory encompasses 470,000 km2 (180,000 sq mi) of ocean area. The archipelagic state is located in the
The Acali was a raft which was used in the Acali Expedition or Acali Experiment. It has also been nicknamed the Sex Raft. The raft had a complement of eleven people: five men and six women. It left Las Palmas, Spain on 12 May 1973 and took 101 days to drift across the Atlantic Ocean
The hydrosphere refers to all the water present on, under, and above the surface of the Earth. This includes oceans, rivers, lakes, groundwater, glaciers, polar ice caps, atmospheric water vapor, and even water contained in living organisms. The hydrosphere plays a crucial role in regulating climate, supporting life, shaping geological features, and driving the water