What caused an increase in phosphorus pollution in Florida waters?

A Diminished wetlands could not filter as much phosphorus pollution.

B Phosphorus was introduced during canal building.

C Phosphorus seeped from aquifer rocks.

D Phosphorus seeped from exposed wetland soils.

The correct answer is A.

Water runoffs usually carry nutrients especially fertilizers from off the landscape and washed them into the wetlands and other water bodies. Phosphorus is a common ingredient that is present in all fertilizers. Phosphorus acts as a pollutant in these water bodies and put the organisms living in the water bodies at risk. High concentration of phosphorus causes rapid growth of plants in the wetlands and lead to depletion of oxygen leading to the death of organisms living in the wetlands.

Due to this occurrence, the Florida government has taken steps and enact several laws to ensure that the phosphorus pollution is arrested in order to preserve the wetlands.

The correct answer si A, diiminished wetlands could not filter as much phosphorus pollution while A is not correct because phosphorus was introduced from mining inland.