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  2. NCERT textbook controversies - Wikipedia

    en.wikipedia.org/wiki/NCERT_textbook_controversies

    In the Class 7 textbook topic titled “Our Pasts-2”, pages 48 and 49 have been excluded. These pages mentioned “Mughal Emperors: Major campaigns and events.” The deletions also affected Biology and Chemistry textbooks as the theory of evolution and the periodic table were also purged from class 10 NCERT textbooks. [40] [41]

  3. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which ...

  4. Economics in One Lesson - Wikipedia

    en.wikipedia.org/wiki/Economics_in_One_Lesson

    ISBN. 0517548232. OCLC. 167574. Economics in One Lesson is an introduction to economics written by Henry Hazlitt and first published in 1946. It is based on Frédéric Bastiat 's essay Ce qu'on voit et ce qu'on ne voit pas (English: "What is Seen and What is Not Seen"). [1] The "One Lesson" is stated in Part One of the book: "The art of ...

  5. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  6. Gross domestic product - Wikipedia

    en.wikipedia.org/wiki/Gross_Domestic_Product

    Gross domestic product (GDP) is a monetary measure of the market value [2] of all the final goods and services produced and rendered in a specific time period by a country [3] or countries. [ 4 ] [ 5 ] [ 6 ] GDP is often used to measure the economic health of a country or region. [ 3 ]

  7. Solution (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Solution_(chemistry)

    Solution (chemistry) Making a saline water solution by dissolving table salt (NaCl) in water. The salt is the solute and the water the solvent. In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

  8. Organic chemistry - Wikipedia

    en.wikipedia.org/wiki/Organic_chemistry

    Category. v. t. e. Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. [1] Study of structure determines their structural formula.

  9. Economic equilibrium - Wikipedia

    en.wikipedia.org/wiki/Economic_equilibrium

    In economics, economic equilibrium is a situation in which economic forces such as supply and demand are balanced and in the absence of external influences the (equilibrium) values of economic variables will not change. For example, in the standard text perfect competition, equilibrium occurs at the point at which quantity demanded and quantity ...