Arika: Minnesota student Arika Kundu, 13, designed a method that turns peanut-shell waste into a material for removing pesticide residues from fresh produce; she is now competing for a $25,000 science...
A 13-year-old Indian-American student from Minnesota has invented a method to reduce pesticide residues on fresh fruits and vegetables by using peanut shells, something that is usually thrown away.
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How a 13-year-old Arika Kundu turned peanut shell into a solution to remove pesticides from fruits & vegetables - The Economic Times