When does Algal Bloom occur?

Explanation:

Algal bloom occur when there is too much of nutrients especially nitrogen and phosphorus which enhance more growth of algae and green plants in the water either fresh water or Marine water. When there is increase in algae growth, some die and cause discoloration of the water and pollution in the water.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

2%? i tried finding the exact sorry if it's not 100% correct ; -;