The temperature affects the A. Biological activity of bacteria in sewage B. Solubility of gases in sewage C. Viscosity of sewage D. All the above

The correct answer is: D. All the above

The temperature affects the biological activity of bacteria in sewage, the solubility of gases in sewage, and the viscosity of sewage.

• Biological activity of bacteria in sewage: Bacteria are responsible for breaking down organic matter in sewage. The rate of bacterial activity increases with temperature. This is because higher temperatures increase the rate of chemical reactions. As a result, sewage treatment plants operate at higher temperatures to increase the rate of sewage treatment.
• Solubility of gases in sewage: The solubility of gases in liquids decreases with increasing temperature. This is because higher temperatures increase the kinetic energy of molecules. As a result, gas molecules are more likely to escape from the liquid. This is why carbonated beverages go
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