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15 fev 1950 ano - 1950 — Dr. Arie Haagen-Smit identifies causes of smog in LA as interaction of hydrocarbons and oxides of nitrogen from auto exhaust.
Adicionado na linha do tempo:
31 ago 2018
0
0
289
envirormental science
Data:
15 fev 1950 ano
Agora
~ 74 years ago