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NCERT Book Class 7 Social Science (Geography) Chapter 3 Our Changing Earth

NCERT Book Class 7 Social Science (Geography) Chapter 3 Our Changing Earth More Detail

NCERT

The National Council of Educational Research and Training (NCERT) is an autonomous organisation set up in 1961 by the Government of India to assist and advise the Central and State Governments on policies and programmes for qualitative improvement in school education.