Question

many of the pesticides for citrus trees are toxic to fish. when the Citrus Groves on a large farm or treated with pesticides high winds deposited 1000 gallons of pesticides into a lake stocked with fish. To ensure survival of the fish 95% of the pesticides must be removed from the lake within 96 hours of contamination. There are two methods of removal: method A: the chemical Engineers have proposed adding a chemical reagent to the pond to neutralize the pesticide. This chemical reagent removes the pesticide at a rate of 11 gallons per hour. method B: the mechanical engineers have proposed fitting the pond with a filtration system. This system removes 4% of the remaining pesticides each hour. which method would you recommend to save the fish?

Answer 1

I recommend method A