Question

Which discovery helped in the introduction of coins as a medium of exchange?​

Answer 1

Answer:

The use of gold as proto-money has been traced back to the fourth millennium BC when the Egyptians used gold bars of a set weight as a medium of exchange, as had been done earlier in Mesopotamia with silver bars.

medium of exchange eases the trade of goods and services. The most common and generally accepted medium of exchange in the modern economy is money – represented as currency. A medium of exchange should have a consistent intrinsic value, be interchangeable, transportable, and reliable.

Explanation:

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Answer 2

Answer:

its metal

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