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Mahsulot tavsifi

This presentation covers the historical development of hygiene, from ancient practices and beliefs to sanitation innovations in the 19th century and public health advances in the 20th century. It highlights examples like the Indus Valley civilization's drainage systems

#hygiene#19th century#20th century#public health#ancient times#sanitation

Muallif

alisher mirazamatov
alisher mirazamatovTasdiqlangan muallif
Hujjatlari
180
Sotilgan
24

O'xshash hujjatlar

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