Question

As DDT passes into food chain, its concetration:

• A. remains same
• B. decreases
• C. becomes zero
• D. increases

Answer 1

Answer: (D)

increases

DDT is something which animals store it in the fatty tissues. Therefore we can say, DDT is fat soluble. So if a bird consumes many organisms, then the DDT in the bird is going to be the result of all the organisms. So DDT increases as we move up the food chain.