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{Empty}
Common

Coal
Common

When dead plant matter decays over millions years, we get this useful energy source.

{Empty}
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{Empty}
Common

{Empty}
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{Empty}
Common

{Empty}
(0)
{Empty}
Common

{Empty}
(0)
{Empty}
Common

{Empty}
(0)
{Empty}
Common

{Empty}
(0)
{Empty}
Common

{Empty}
(0)
{Empty}
Common

{Empty}
(0)
{Empty}
Common