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  1. en.wikipedia.org › wiki › PsoriasisPsoriasis - Wikipedia

    Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. These areas are red, pink, or purple, dry, itchy, and scaly. Psoriasis varies in severity from small localized patches to complete body coverage. Injury to the skin can trigger psoriatic skin changes at that spot, which is known as the Koebner phenomenon.

    • Adulthood
    • Red (purple on darker skin), itchy, scaly patches of skin
  2. It was formed approximately 4.5 billion years ago, is a terrestrial planet and is the second smallest of the Solar System 's planets with a diameter of 6,779 km (4,212 mi). A Martian solar day ( sol) is 24.5 hours and a Martian solar year is 1.88 Earth years (687 Earth days). Mars has two small and irregular natural satellites: Phobos and Deimos.

  3. High-performance liquid chromatography ( HPLC ), formerly referred to as high-pressure liquid chromatography, is a technique in analytical chemistry used to separate, identify, and quantify specific components in mixtures.

  4. Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.

  5. en.wikipedia.org › wiki › LithographyLithography - Wikipedia

    t. e. Lithography (from Ancient Greek λίθος, lithos 'stone', and γράφω, graphō 'to write') [1] is a planographic method of printing originally based on the immiscibility of oil and water. [2] The printing is from a stone ( lithographic limestone) or a metal plate with a smooth surface. It was invented in 1796 by the German author and ...

  6. en.wikipedia.org › wiki › PhotopeaPhotopea - Wikipedia

    Photopea (/ˈfoʊtəˈpiː/ FOH-tə-PEE) is a web-based photo and graphics editor. It is used for image editing, making illustrations, web design or converting between different image formats. Photopea is advertising-supported software. It is compatible with all modern web browsers, including Opera, Edge, Chrome, and Firefox.[3] The app is ...

  7. Wikipedia:About. This is a general introduction for visitors to Wikipedia. For aspiring contributors, also see this guide and tutorial. For other uses, see Wikipedia:Wikipedia (disambiguation). "Imagine a world in which every single person on the planet is given free access to the sum of all human knowledge. That's what we're doing."

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