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8 Sept 1939 Jahr - 1939

Beschreibung:

DDT was introduced, marking the beginning of agriculture's heavy use of chemical pesticides in developing countries. The U.S. banned DDT in 1972 because it was harming the environment.

Zugefügt zum Band der Zeit:

History of agriculture

ByTommy Pham
7 Mär 2018
0
0
471

Datum:

8 Sept 1939 Jahr
Jetzt
~ 86 years ago
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