Listen&Learn: Carbon Datingþ experts use carbon dioxide dating to learn the age of a fossil.

Listen&Learn: Carbon Datingþ experts use carbon dioxide dating to learn the age of a fossil.

Pre-listening vocabulary

  • carbon dioxide: a standard chemical factor which essential for existence
  • non-renewable: the stays of an organism that https://hookupdates.net/escort/detroit/ stayed in the past
  • radioactivity: the ability of a compound to generate energyfrom the decayof the particles
  • decay: to split down or decompose
  • half-life: how long it requires for half a compound to completely decay
  • quote: to create an acceptable imagine
  • fossil fuel: normal fuels like oil orcoal

Listening activity

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Comprehension issues

1. boffins need carbon online dating to find out

2. 5700 decades will be the length of time required

5700 decades is the period of time it requires for half of a non-renewable’s carbon-14 to decay.

3. Carbon relationships could be tougher in the foreseeable future because

Carbon dioxide dating is likely to be more difficult in the foreseeable future since there’s excess stable carbon dioxide into the ambiance. (mehr …)

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