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  2. Council for the Indian School Certificate Examinations

    en.wikipedia.org/wiki/Council_for_the_Indian...

    The Council for the Indian School Certificate Examinations (CISCE) [1] is a non-governmental privately held national-level [2] [3] board of school education in India that conducts the Indian Certificate of Secondary Education (ICSE) Examination for Class X and the Indian School Certificate (ISC) for Class XII.

  3. Indian Certificate of Secondary Education - Wikipedia

    en.wikipedia.org/wiki/Indian_Certificate_of...

    The ICSE Examination is a school examination and the standard of the examination pre-supposes a school course of ten years duration (Classes I-X). The Indian Certificate of Secondary Education Examination will ensure a general education and all candidates are required to enter for six or more subjects and Socially Useful Productive Work (SUPW).

  4. National Council of Educational Research and Training

    en.wikipedia.org/wiki/National_Council_of...

    The textbooks are in color-print and are among the least expensive books in Indian book stores. [11] Textbooks created by private publishers are priced higher than those of NCERT. [ 11 ] According to a government policy decision in 2017, the NCERT will have the exclusive task of publishing central textbooks from 2018, and the role of CBSE will ...

  5. Principles of Biology - Wikipedia

    en.wikipedia.org/wiki/Principles_of_Biology

    Principles of Biology is a college level biology electronic textbook published by Nature Publishing in 2011. The book is not a digitally reformatted version of a paper book. [ 1 ] The book, the first in a projected series, is Nature Publishing's first foray into textbook publishing.

  6. Wastewater treatment - Wikipedia

    en.wikipedia.org/wiki/Wastewater_treatment

    Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. [ 21 ] : 11 The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option.

  7. 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.

  8. ICSE - Wikipedia

    en.wikipedia.org/wiki/ICSE

    ICSE may refer to: International Conference on Software Engineering; Indian Certificate of Secondary Education This page was last edited on 13 ...

  9. Arsenic - Wikipedia

    en.wikipedia.org/wiki/Arsenic

    In As 4 S 10, arsenic has a formal oxidation state of +2 in As 4 S 4 which features As-As bonds so that the total covalency of As is still 3. [38] Both orpiment and realgar, as well as As 4 S 3 , have selenium analogs; the analogous As 2 Te 3 is known as the mineral kalgoorlieite , [ 39 ] and the anion As 2 Te − is known as a ligand in cobalt ...