Question

why do you think coins have changed over time?​

Answer 1

Answer:

Coins have changed over time so that the coins are highly durable and strong.

Explanation:

At first there were copper coins but then many coins started breaking so they changed to silver to make it the most durable but that emptied the Treasury so they started making Metal coins which were durable,lustrous. Metal coins are the coins that are still being used world wide.

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Answer 2

Answer:

In 1982 the price of copper dictated a change in the composition of the Lincoln penny. The mint struck approximately half the 1982 pennies from the copper alloy. The rest were made with a copper plating over a zinc core with a copper composition of only 2.5%.