Gring and Woodin's Adventure in Water Kingdom4

Domestic wastewater here is a major cause of river pollution. Which place in the home pollutes water the most?Domestic wastewater = polluted water from sewageLet's think together! The stone necklace leads to a hint! We are going to die...Uhh, we can't breathe...Don't drain oil directly ...The sh was talking about oil. I got it! We use oil in the kitchen! The answer is ! KitchenKitchenToiletToiletBathBath