World Facts

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What Is A Fumarole?

A fumarole is an opening in the Earth’s crust that emits or vents gases and steam.

April 29, 2019 15:41

What Are The Contiguous United States?

Forty-eight states and the District of Columbia share a boundary with at least one other state and jointly make up the contiguous United States.

April 26, 2019 14:47

What Is Guano?

Many small islands have prosperous guano trades.

April 25, 2019 13:23

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