Crude petroleum pollutant usually seen on some Nigerian creeks and waterways can...

This question is asking about how to remove crude petroleum pollutant that is often seen on some Nigerian creeks and waterways. The question wants us to choose the best method to disperse or remove the pollutant.

Option A suggests heating the affected parts to boil off the petroleum, but this may not be the best option as it can cause more harm to the environment. Option B suggests mechanically stirring to dissolve the petroleum in water, which may be effective but could also cause more harm by spreading the pollutant further.

Option C is the correct answer. It suggests pouring organic solvents to dissolve the petroleum. This method is often used in the industry to clean up oil spills. The solvents break down the petroleum into smaller components that can be more easily removed from the water. However, it is important to note that the solvents used should also be environmentally friendly and safe for aquatic life.

Option D, spraying the water with stergents, may not be effective as some petroleum components may not be soluble in water. Option E, cooling to freeze out the petroleum, may not be practical as it would require very low temperatures and may cause more harm than good.

In summary, the best method to disperse or remove crude petroleum pollutant from Nigerian creeks and waterways is to pour organic solvents to dissolve the petroleum. However, it is important to use environmentally friendly and safe solvents.