Listen&Learn: carbon dioxide Datingþ boffins need carbon dating to find out age a fossil.

Listen&Learn: carbon dioxide Datingþ boffins need carbon dating to find out age a fossil. Pre-listening vocabulary carbon dioxide: a common chemical factor that’s necessary for lifestyle fossil: the remains of a system that existed in the past radioactivity: the power of a substance to produce energyfrom the decayof its particles decay: to-break straight down or …

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