Concept:The Ganga Action Plan was a government initiative to reduce pollution in the Ganga River and restore its water quality.
Explanation:Launched in 1985, its main goal was to intercept, divert, and treat domestic sewage and industrial waste entering the river.
This would reduce toxic pollutants and improve the river's overall cleanliness and health.
The plan focused on preventing untreated waste from reaching the water, thus directly improving water quality.
Other options like water velocity, quantity, or temperature were not the primary targets.
Answer:A. water quality