Keep Your City Clean   Reema is the head of the ‘Environment Club' in her school. She saw this sight near her school. She wants to spread awareness amongst other students about water pollution. What should she do? Write some steps which she can take. There is a chemical factory near the school which disposes all the waste material in the river. Animal waste from the slaughter house near the river is also another cause of the pollution… People also pollute the river by throwing all kinds of garbage in it.