Question

Concentration of DDT for first trophic level (phytoplanktons) and top trophic level (fish eating birds) is respectively in aquatic food chains if DDT is 0.003 ppb in water -

• A. 0.025 ppm, 25 ppm
• B. 0.003 ppm, 2 ppm
• C. 0.5 ppm, 2 ppm
• D. 0.04 ppm, 2ppm

Answer 1

Answer: (A)

0.025 ppm, 25 ppm