WORLD HISTORY

Detailed explanation-1: -Environmental factors such as soil type and porosity, groundwater level and hydraulics, and distance to surface water influence the degree of contamination. In the choice of sanitation technologies, ground conditions, particularly groundwater level, soil permeability and stability, are important considerations.

Detailed explanation-2: -Without proper sanitation facilities, waste from infected individuals can contaminate a community’s land and water, increasing the risk of infection for other individuals. Proper waste disposal can slow the infection cycle of many disease-causing agents.

Detailed explanation-3: -The 4 types of sanitation include the Excreta management system, solid waste management system, wastewater management system, and drainage system.

Detailed explanation-4: -flush toilet. piped sewer system. septic tank. flush/pour flush to pit latrine. ventilated improved pit latrine (VIP) pit latrine with slab. composting toilet.