Học trò sáng chế thuốc trừ sâu từ… hành, tỏi và ớt
Không chỉ là những gia vị tuyệt vời, hành, tỏi và ớt còn có tác dụng xua đuổi sâu bọ! Đây là “nguyên liệu” để 5 học sinh bang Uttar Pradesh (phía bắc Ấn Độ) làm nên loại thuốc trừ sâu thân thiện với môi trường.
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nzhu4burOOG7qeG6s+G7k2s44bq/bMOtOOG6v3fhurc4w6rhurfhu5NrOOG7sOG7q+G7q+G6t8awOOG7psaw4bq34buB4buD4bupbDjhu4d5w7rhur844bq/bMah4buTOOG7q2zhurfhu5E44buB4bu1OExwbTjhu5NrbMOzOMOVbOG7meG6tzhsxqHhur844buqbG3DreG7sTjhu5NsbTjFqOG7seG7n+G6vzhrbeG6tzhF4buTOOG7hnA44buBbcSp4buTOMaw4bq3OOG6v+G7seG7n2044burbOG6s+G7k2s44buT4bq14bqgXTEv4bur4buBMjEv4burxrAyMS/hu6vhurfDqsO04buDMuG7qmzhu4Phu5k44buAxJHhu5M44buqxrBu