Question

Which of the following is the greatest volume of waste discharge to water?

• A. Spillage from oil pipelines
• B. Sewage
• C. Nuclear waste
• D. Spillage from tankers

Answer 1

Answer:

B. Sewage

The greatest volume of waste discharged to water is sewage, which is primarily organic in nature and is degraded by bacterial activity. Using the oxygen present in the water, these wastes are broken down into stable inorganic compounds.