Question

What is algal bloom please explain not copy from Google

Answer 1

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An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and is often recognized by the discoloration in the water from their pigments

Answer 2

It refers to the increase in the amount of algae in freshwater

they are caused because of excessive use of nutrients in water

the photo will tell better