Supposing you were Lihua, and you lived near a chemistry factory, which often poured wastes into the river nearby, at the meantime, it released poinsonous gas, all these had challenged the safety of drinking water and lead to bad consequences as well. After seeing all, you couldn't put up with it and wanted to ask the factory to reduce their product and stop pouring polluted water and air. Whereas, your father would lose his job for he was the manager of the factory.
(What will you do?)