ANS:C - 99.9%

The water content of sewage typically ranges from 95% to 99.9%. Sewage is primarily composed of water along with dissolved and suspended organic and inorganic matter. The exact water content can vary depending on factors such as the composition of the sewage (e.g., domestic, industrial, or mixed), the efficiency of wastewater treatment processes, and environmental conditions. In general, sewage contains a high proportion of water due to its nature as wastewater from various sources such as households, industries, and commercial establishments. The remaining percentage consists of solids, including organic matter, suspended particles, and dissolved substances. While the water content of sewage can vary within the range mentioned above, it is typically high, with most of the sewage volume comprising water.