Answer:
D they are currently found in abundance.
Explanation:
The statement that describes the advantage of a non-renewable energy source is that they are currently found in abundance.
Million + million =<span>two million
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B: Occur naturally, have a fixed chemical composition
If you are telling us to revise the sentence, one error is that there is a double negative. 'not' and 'un' would cancel each other, and the revised sentence 'I wouldn't say he's the nicest guy around, but I've seen him behave kindly before.'
The racist one thank me later :)