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Gerardo Cornejo Velez
3 Videos Published
00:48
Traditional Farming Methods Leave Africa's Tomato Crops at Risk
Gerardo Cornejo Velez
00:48
Gerardo Cornejo Velez Presents: Alternative Feedstocks for a More Sustainable Plastic Industry
Gerardo Cornejo Velez
00:54
Gerardo Cornejo Velez Presents: Hydroponics - What and Why?
Gerardo Cornejo Velez