The pollution from petroleum spillage in rivers and lakes can best be dispersed by
-
Pouring detergents
- Passing of ships through the area
- Pouring organic solvents
- Evaporation
The correct answer is: A
Explanation
Detergents are used to disperse petroleum pollution in rivers and lakes because they break up oil slicks into smaller droplets that are easier to biodegrade.
Detergents are chemical agents that contain molecules with both oil- and water-compatible ends. When sprayed on the oil, these molecules attach to the oil and reduce the surface tension between the oil and water. This breaks up the oil slick into smaller droplets that dilute throughout the water.
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