The answer is C i’ve got this question and the answer was C , hope this helps.
It has to be iron because oxygen doesn’t run out unless being used by something like sticking it in a bubble.
Pretty sure it’s B not 100% tho
Answer:
A team of Chinese researchers have turned cheap copper into a new material “almost identical” to gold, according to a study published in peer-reviewed journal Science Advances on Saturday. The fast-moving ionized particles blasted copper atoms off the target.
hope this helps
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Explanation:
