The largest silver deposit in the US.

Alaska. In 2015, Alaska was the nation's leading silver-producing state. Two Alaska mines were significant silver producers. The Greens Creek mine, owned by Hecla Mining, produced 8,452,153 troy ounces of silver

Explanation:

In 2015 Alaska was known as the nation's leading silver which means that Alaska's mines (both) were significant silver producers. Also, we know that the Greens Ceeek mine was literally owned by Hecla Mining that was produced or produced 8,452,153 troy ounces of silver.

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b) the confederacy had to pay all union war expenses.

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."