By B. Chandrasekaran; K. Annadurai; E.Somasundaram
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Extra resources for A Textbook of Agronomy
In the second stage, the Gondwana period continents separated from each other during the Jurassic and Cretaceous period. In the late Jurassic, South America separated from Africa. This created another narrow basin between these two continents. The eastern coast of North America separated from the Moroccan bulge of Africa. The breakup of the Gondwanaland opened up the Atlantic and the Indian Ocean. In stage three, the Atlantic extended north, and Eurasia rotated clockwise to close the eastern end of the Tethys Sea, the precursor to the Mediterranean.
D. Contribution to Foreign Exchange Resources Agricultural products–primary produce and manufactured through agricultural raw material occupy an important place in the country’s export. According to an estimate, agricultural commodities like raw cotton and jute, unmanufactured tobacco, oilseeds, spices, tea and coffee accounted for about 49 per cent of the total value of exports in 1988–89. This makes a sizable contribution to the foreign exchange resources of the country. E. Interdependence between Agriculture and Industry There is a close interdependence between agriculture and industry.
This is why the ancient land tying India and Australia together that sank incrementally over time, is referred to as ‘Lemuria’. The Tamil bark writings in Southern India tell of the gigantic Southern part of India, which used to connect to Australia cataclysmically sinking incrementally over a long period of time. This was ancient Lemuria or Kumari Kandam. The first Tamil Sangam was believed to have occurred in the so-called lost continent known as Kumari Kandam. ) since there the existence of an island, Sri Lanka, in the Indian Ocean during the Ramayana period was mentioned.