What should not be done to the environment is not polluted water disposal into the rivers, canals. Do not burn garbage or wood chips, grass, debris litter the official should leave garbage into the trash, etc.
What should be done to the environment is not dumped sewage into rivers. Do not burn trash or wood chips, grass clippings. Litter is a Do not throw trash into the trash, etc..
What shouldn't treat environment is not the water is broken down river. Don't waste or scrap wood, grass dumping safety should be garbage into the trash can.