Question
Name any three water pollutants.
Name any three water pollutants.
Three water pollutants are:
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Why are whales not grouped in fishes?
How is nitrogen replenished in atmosphere?

Define diarrhoea. Give an account of occurrence, symptoms, prevention and control of this ailment.
Briefly describe:
Infectious agents.
What is ozone shield? How is it being corroded?