CBSE 12th Arts

INTRODUCTION OF GREEN REVOLUTION The green revolution was a period when the productivity of global agriculture increased drastically as a result of new advances. During this time period, new chemical fertilizers and pesticides were created. The chemical fertilizer made it possible to supply crops with extra nutrients and therefore, increase …

INTRODUCTION Harappan civilization was discovered in 1920-22 when two of its most important sites were excavated. These were Harappa on the banks of the river Ravi and Mohenjo-Daro on the banks of the Indus. The first was excavated by D.R. Sahani and the second by R.D. Banerji on the basis …