Which wastewater type includes water from kitchens and laundries?

The correct answer is grey water, as this term specifically refers to the wastewater generated from domestic activities such as bathing, washing dishes, and laundry, excluding toilet waste. Grey water is distinct from black water, which contains human waste and is hazardous due to pathogens. Runoff water pertains to rainwater or surface water that moves over the ground, usually from rainfall, and does not specifically originate from household activities. Industrial wastewater refers to contaminants from industrial processes and is also separate from household sources. Understanding the categorization of wastewater is essential for appropriate treatment and management practices, especially in the context of recycling and environmental protection.