Answered

Which statement best compares coal and ores?

A. Both are burned for energy.
B. Both take millions of years to form.
C. Both require oxygen to form.
D. Both are used to make coins.



Answer :

GinnyAnswer

Final answer:

Coal formation, usage as a non-renewable resource, and environmental impacts


Explanation:

Coal is a fossil fuel formed from prehistoric vegetation in layers of sediment over millions of years. When burned with oxygen, coal produces carbon dioxide, releasing heat energy.

Coal is a non-renewable energy source as its formation process is time-consuming and the current reserves are limited, leading to significant environmental impacts when burned.

Using coal to generate electricity accounts for over 50% of the US electricity production, despite the harmful emissions of sulfur dioxide, nitrogen oxides, heavy metals, and carbon dioxide released during combustion.


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