marianadiego45 marianadiego45
  • 15-04-2019
  • Biology
contestada

I need an answer please!?

I need an answer please class=

Respuesta :

sabahs sabahs
  • 15-04-2019

Answer:

C. 4000 years

The half life of a substance is the time it takes for half of it to be destroyed( so half of it will be left)

so if we have 100g of a substance with half life of 2000 years

100g~~~>50g~~~>25g

It’ll take 2 periods of 2000 years=4000 years

Hope this helps:)

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