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Mesolithic Period

Since both st...

Question

Since both stone and ______________ were used, this period is called the Chalcolithic Age.
a. aluminium
b. copper
c. bronze
d. tin

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Solution

The correct answer is option (b).

Explanation: The tools made of copper were much stronger than those of stone.This period extended from 4,000 BC to 2,000 BC. Though it was a short period, it was also important because there was a shift from stones to metals.

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Q. Metallurgy, the study of extraction of metal from ores, developed by this age, which approximately lasted from 3,000 BC to 1,200 BC. The beginning of this age is also called the Chalcolithic Age, referring to the initial use of copper. By 1,000 BC, the ability to heat and forge a stronger metal called iron brought this age to an end. Identify this period of prehistory.

Q. The alloy bronze contains Copper and Tin. This is a:

Q. Metallurgy, the study of extraction of metal from ores, developed by this age, which approximately lasted from 3,000 BC to 1,200 BC. The beginning of this age is also called the Chalcolithic Age, referring to the initial use of copper. By 1,000 BC, the ability to heat and forge a stronger metal called iron brought this age to an end. Identify this period of prehistory.

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Anju read a fact that, bronze contains 88% copper and 12% tin. So, there will be ___ gms of copper in 200 gms of bronze.

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