Gas is the answer. I hope its the right one but its the best thing i could come up with
Only unicellular orgaimns I might be wrong
Answer:
Industries cause enormous water pollution: By directly discharging their untreated effluents into water bodies like rivers and lakes. By letting their polluting effluents flow onto land so that they get absorbed into the soil and pollute underground water.
Plant cells have a cell wall and cell membrane but animal cell have only a cell membrane.