Answer: Fish kills, Lake Dead zones, and Decreased Nutrients in the lake
Explanation:
Because of algae blooms they produce neurotoxins, hepatotoxins, and dermatotoxins which are all toxic to the environment causing fish to die
They also cause Dead Zones because of the lack of oxygen, this is called hypoxia.
they also typically take up nutrients like: nitrogen or phosphorus, but can also be iron, vitamins, or amino acids.
In conclusion, Algal blooms are bad for everything listed there