HISTORY
ANCIENT INDIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Drainage and sewer systems
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A canal system that irrigated crops of cotton and sugarcane
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A reservoir (artificial lake for water storage) at Girnar in 3000 BCE
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All of the above
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Detailed explanation-1: -The most important mathematical contribution of ancient India is the invention of the decimal system of numeration, including the number zero.
Detailed explanation-2: -Indians invented zero and the number system, one of the greatest innovations in history. The decimal system, the value of pi, algebra, trigonometry, calculus and many mathematical concepts were all born in India.
Detailed explanation-3: -During the ancient times, India was the leading exporter of silk, cotton, sugar, precious stones. India was also the exporter of spices to the west and this was done through the spice route. All these items were exported in exchange for gold and silver from other nations.
Detailed explanation-4: -It had significant cultural progress in arts and crafts, trade and commerce, religious practices, written script, weights and measures, pottery, seals, stonework, sealings and figurines. It also had advanced economic, administrative and social systems.