Respuesta :

Underground, carbon can be stored in ____, which humans ___.

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coal, oil, fossil fuels ... humans burn for energy

Underground carbon can be stored in fossil fuels, which humans burn for

energy.

Fossil fuels are found in the earth crust of mainly marine environments and

comprises of substances such as crude oil.

The fossil fuels are then converted into gasoline , diesel etc which are then

used by humans as a form of fuel to power our appliances . The chemical

energy is mostly converted into electrical or mechanical energy.

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