General Science- Manushya Ke Watavaran Ko Sudharne Se Nasl Sudharna Kehlata Hai ?

Q.11792: मनुष्य के वातावरण को सुधारने से नस्ल सुधारना कहलाता है ?
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मनुष्य के वातावरण को सुधारने से नस्ल सुधारना कहलाता है ? - Improvement of the environment of human beings is called breeding. - Manushya Ke Watavaran Ko Sudharne Se Nasl Sudharna Kehlata Hai ? General Science in hindi,   uthenix question answers in hindi pdf  Jiwashma Vigyaan questions in hindi, Know About yujenix General Science online test General Science notes in hindi quiz book    udvikas