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Emergence of chemistery:
Chemistry The level of chemical knowledge and practices in the new ordered society is reflected in the pottery, iron tools and glass objects found at various Iron Age sites. The iron tools that you see in Fig. 3.5, indicate a fairly advanced knowledge of iron smelting. By the fifth or the' fourth century B.C., the Indian metalworkers had attained a high degree of perfection in the techniques of producing iron and steel. Glass objects unearthed in over 30 sites indicate that production of glass came to be known only towards the end of this period. Ceramic bowls, dishes, lids and carinated jars ('handis') dated from about the sixth century B.C. to the second century B.C.. were also found in these sites. Fermentation methods, dyeing techniques, the preparation and use of a number of cheniicals and colour pigments were well known.
Pluto: Pluto's existence was also proposed to account for deviations in the orbit of Uranus. Even after the influence of Neptune~had been accounted for, an American astron
WHAT IS THE OCEAN''S COASTLINE''S LIVING AND NON-LIVING THINGS?
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factors which decide the broad area of scientic activity
Describe Common elements that make up the minerals of the Earth's crust? The Earth's crust, which is the layer of the Earth we are on now, is made of numerous minerals and rock
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Explain Automaticity - Properties of a Beating Heart Take out my heart from my body and it will still go on and on beating. How true! Even a completely denervated heart eom the
physical features of arizona
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