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23 oct. 1958 - Karbondioksit seviyesi 315 PPM

Description:

PPM nedir?
140bin 1.5 litrelik suyu bir kaba boşaltırsak 1PPM bu kaba damlatılmış 4 damla mürekkebe eşittir.

Ajouté au bande de temps:

qqq

ByUmut Uygun
12 déc. 2017
0
0
623

Date:

23 oct. 1958
Maintenaint
~ Il y a 67 ans
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