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1 天前 · The ocean is the body of salt water that covers approx. 70.8% of Earth.[8] In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided.[9] The following names describe five different areas of the ocean: Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic.[10][11] The ...
- 3.688 km (2 mi)
- 1,370,000,000 km³ (328,680,479 cu mi) (97.5% of Earth's water)
- 361,000,000 km² (139,382,879 sq mi) (71% of Earth's surface area)
- List of countries by length of coastline
2 天前 · Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.
1 天前 · Laplace transform. In mathematics, the Laplace transform, named after its discoverer Pierre-Simon Laplace ( / ləˈplɑːs / ), is an integral transform that converts a function of a real variable (usually , in the time domain) to a function of a complex variable (in the complex-valued frequency domain, also known as s-domain, or s-plane ).
2 天前 · Lesotho ( / lɪˈsuːtuː / ⓘ lih-SOO-too, [6] [7] Sotho pronunciation: [lɪˈsʊːtʰʊ] ), formally the Kingdom of Lesotho, is a landlocked country in Southern Africa. As an enclave of South Africa, with which it shares a 1,106 km (687 mi) border, [8] it is the only sovereign enclave in the world outside of the Italian Peninsula.
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4 天前 · The BBC is a state owned public broadcasting company and operates under a royal charter.The charter is the constitutional basis for the BBC, and sets out the BBC's Object, Mission and Public Purposes. It emphasises public service, (limited) editorial independence, prohibits advertising on domestic services and proclaims the BBC is to "seek to avoid adverse impacts on competition which are not ...
2 天前 · Internet TLD. .mg. Madagascar, officially the Republic of Madagascar, [a] is an island country comprising the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's fourth largest island, the second-largest island country and the 46th largest country in the world. [14]
1 天前 · For other uses, see Metaphysics (disambiguation). The beginning of Aristotle's Metaphysics, one of the foundational texts of the discipline Metaphysics is the branch of philosophy that examines the basic structure of reality. It is often characterized as first philosophy, implying that it is more fundamental than other forms of philosophical ...
