Chemical substances & their adverse effects on human body - Environment & Biodiversity
Q. Match the following chemical substances with the adverse effects they cause on human body.
1) PCBs ------------------- Nervous disorders
2) Mercury --------------- Dropsy
3) Dioxins ---------------- Cancer
4) Asbestos -------------- Respiratory problems- Published on 31 Aug 15a. Only 3 and 4
b. Only 2, 3 and 4
c. Only 2 and 3
d. All of the above
ANSWER: All of the above
PCBs also cause cancer. Other major pollutant is Lead which causes paralysis, blindness, displexia and even death. Mercury can damage nervous system too. Mercury causes Minamata disease in humans and dropsy in fishes.
